Muro Box-N40 Sublime | Programmable Musical instrument, Your Personal Music Box Pianist.

US $2,244

Deliver Time:
Orders will be shipped in the order they are received. The current estimated delivery date is May 2025.

Order the N40 Sublime to receive the following free items:

  1. One customized engraving nameplate
  2. One 2-minute long customized melody arrangement
  3. The N40 music box comes with a resonance box that doubles as packaging.

Please choose the default or upgrade to another style (additional cost) to complete your order.

We will email you forms to submit your customized content.

GLOBAL SHIPPING CHECK HERE! The Price Does Not Include Import Tax.
14 Days Refund & Warranty Policy
Terms of Services

Current Production Lead Time: 5 Work Days. Customization services require an additional 3 work days.
GLOBAL SHIPPING CHECK HERE! The Price Does Not Include Import Tax.
14 Days Refund & Warranty Policy
Terms of Services

A New Chapter in Music Boxes-
Muro Box-N40
Sublime

We utilize four vibration plates (combs) to create the “Sublime Harmony”
and achieve top-tier music box performance effects.

Fulfill Your Ultimate Dream of a Music Box

The history of music boxes has embarked on a new chapter.

※ The Muro Box-N20 Lite Battery-Powered version shown in the video is still under development.

Special Sound Effect of Top-Tier Music Box

Top-tier music boxes often utilize multiple combs in order to create the effect of simultaneously producing two tones with the same pitch, differing by 14 cents in frequency.
(100 cents = 1 semitone).

This is the unique effect known as “Sublime Harmony”, exclusive to top-tier music boxes.

Please listen to the audio below, where we actually compare the effect with and without the 14-cent difference using the same melody. It’s Chopin’s “Minute Waltz” in D-flat major, Op. 64, No. 1 (“Valse du petit chien”).

This is a recording of the N40 Sublime version, demonstrating the rich resonance effect at -14 cents:

This is a recording of the N40 Standard version, showcasing the bright and pure tone of the music box at 0 cents:

The Secret to Beautiful Sound: Our Dedication to Material and Craftsmanship

The comb, metal base, and wooden box body complement each other, and each is indispensable. Let’s take a look at the development journey of each component to understand the key technologies and design insights that allow the music box to produce a lingering resonance, just like a musical instrument.

The vibration plates (combs) of Muro Box-N40 music box

Sublime Harmony: Top-tier music box performance effect

Like the sound of heavenly music, each note is played simultaneously by two vibrato plates differing by 14 cents, meticulously remastered with four vibration plates (combs), showcasing the exquisite craftsmanship of the luxury music box’s unique design.

>>Learn More about the Design Process of the Comb

The close shot of wood grain of the thermally modified Acacia wood: this wood is used for the N40 Sublime and the upgraded N40 Standard music boxes as well as the Taiwanese Acacia resonance box, an add-on option for both N40 music box models.

Caramel Scented Acacia Wooden Box

The wood grain of Acacia is prone to warping due to its spiral structure, and it’s difficult to be shaped due to its hardness.

However, after undergoing heat modification to prevent deformation, it emerges as the optimal tonewood choice, distinguished by its high strength and density.

The wooden box is made with Taiwanese Acacia Confusa wood, aged over 60 years, and paired with hand-applied wood wax to preserve its naturally emanating caramel aroma.

>>Learn More about the Design Process of the Wood Box

The Only App-Controlled and Programmable Music Box in the World, Muro Box -N40 Sublime pure brass base

Bright and Warm Solid Brass Base

With a minimalist design, the entire base is crafted from solid brass, harkening back to the authentic origins of music boxes from two centuries ago. The warm-toned metallic texture exudes understated luxury, embodying the charm of classical simplicity.

>>Learn More about the Design Process of the Metal Base

The Muro Box-N40 app-controlled and programmable music box has a pure brass tuning weight installed beneath the comb.

Exclusive Brass Tuning Weight Design

The reason for using brass is because we aim to utilize a lead-free process, which rules out the use of conventional lead blocks. Brass, being a material with a higher density, is the most common alternative and is readily available with stable processing properties.

We have proposed a new method of securing the brass blocks using a dovetail joint. This involves drilling holes at the front end of the comb teeth, allowing the brass blocks to be inserted and wedged directly onto the teeth.

>>Learn More about the Design Process of the Comb

Muro Box-N40 Sublime music box and a pinewood unpainted resonance box, where the brass components in the music box mechanism are marked as A, B, C, and D.

The Brass Components Create a Luxurious Sense of Continuity in the Series

Brass components require multiple anti-rust treatment processes. To achieve optimal results, we apply high standards to every detail. The finished music box has a consistent overall tone, perfectly showcasing the luxurious combination of brass and acacia wood.

Brass components in the Muro Box-N40 Sublime music box mechanism:

  • A: Acrylic lid clamps
  • B: Hand-tightened screws for securing the lid
  • C: Flywheel (enhances the stability of the cylinder’s rotation)
  • D: Brass base (key to producing a warm, resonant sustain)
N40系列將產品包裝箱運送箱和共鳴箱的功能結合,其木材與音質的影響是我們考量的第一重點。經過四處到訪採購,考量來源及製程,在定案前也做了不同木材製共鳴箱的音質實驗。

Resonance Box: Enhancing Volume and Sustain

The N40 series packaging is designed with a different approach, combining the functions of a shipping box and a resonance box.

The impact of the wood on sound quality was our primary consideration. After extensive visits and procurement, evaluating sources and manufacturing processes, and conducting sound quality experiments with resonance boxes made from different woods.

>>Learn More about the Design Process of the Resonance Box

Listen Online Now

Quick Online Live Demo

  1. First, turn on the sound for the live stream above (click the speaker icon to unmute).
  2. Press the button on the right, and the corresponding machine will start playing.
  3. Please wait for the machine to respond; do not click repeatedly.
  4. If you hear a machine already playing, it means someone else is currently testing. Please wait until the song finishes before taking your turn to ensure a smooth listening experience.

Download our free app and choose from thousands of tracks to play live!

  1. Download our FREE app “Muro Box” from the App Store or Google Play.
  2. Login the App with Account and Password shown in the Live Stream.
  3. Remember to turn on your speaker from the screen of the live stream window. Check out thousands of melodies shared by our global music box community.

** To get the best experience, use a desktop or second phone to watch the live stream video when your mobile is operating the Muro Box app.

Make your dream of turning a music box into a musical instrument come true.

The smart music box, Muro Box-N40, expands the 20-note music box's white-key range into a complete 40-note version that includes black-key semitones.

Increase Music Range to 40 Notes

The N40 can use 40 notes:
F2-C6 (excluding F#2, G#2, A#2, and C#3; Middle C = C3 = 261.6 Hz)

The 40-note scale expands the pitch range and includes semitone, providing more expressive possibilities for the music box during performance.

To understand why we chose to exclude these four semitones, please refer to this Muro Box-N40 update #8.
When users want to cover other people’s songs, the current N40 scale range can restore the original songs’ features easily. N40 also gives you more freedom to create your own melodies and chords.

Easily Compatible with Various MIDI Devices

Do you love the sound of a music box and wish it could play your compositions like a piano? Now, with the N40 Sublime version of the music box, your dream can easily come true! By connecting a MIDI keyboard and laptop through the MIDI input port, the music box can perform your compositions in real time.

Allow us to proudly introduce the world’s first app-controlled music box, “Muro Box,” designed and manufactured in Taiwan. Its name is derived from the abbreviation of Music Robot in a Box.

Play with a MIDI keyboard and edit with music composition software on your laptop for Muro Box-N40 Sublime music box.

One Music Box Play All of Your Favorites: Set the length and number of songs as you wish!

With the exclusive Muro Box app, you can search for songs, edit playlists, and create new melodies to send directly to the music box for live performance. Finally, your dream of playing a complete custom repertoire on a music box can come true!

The Muro Box-N40 music box expands its range to 40 notes, including black-key semitones, letting you store all your favorite theme songs of cherished memories!

More Compatible Free Melodies Export from Music Box Maniacs

Support more tracks to be exported from Music Box Maniacs ( MBM ) to Muro Box-N40 for free!

The rich music collection made by global music box fans can be imported to your Muro Box App simply by scanning the QR code of the melody you like!

The Muro Box App has now integrated with the world’s largest music box enthusiast community, Music Box Maniacs (MBM). This integration expands the app's music library, allowing users to import tracks from MBM into the application.

N40 Widens Music Range to Break the Limitation for Music Arrangement

The N40 music range covers 40 notes from F2 to C6. (Middle C = C3 = 261.6 Hz)
The music range spans nearly 4 octaves, providing you with more varieties in arranging your own accompaniment and melody.

▲The above video is a simulation of the tone and not an actual recording of the N40 music box’s sound.
The focus of this video is to demonstrate how the expansion of the N40’s range enhances the variability in arrangement techniques.

Start Playing Your Favorites by Pressing the Knob!

Adding songs to the “offline playlist” is similar to copying and pasting files from your cloud drive folder to a local folder at your desktop.

All of the family members who have paired with the same Muro Box can edit an exclusive offline playlist for this music box by adding or removing songs and adjusting the order.

Any smartphone that has been paired with a Muro Box-N40 Sublime can share the offline playlist, with no limit on the number of users. Once tracks are added to the paired Muro Box offline playlist, you can start playing the music with a single turn of the knob!
The Muro Box-N40 Sublime Music Box features a power USB-C port, a USB-C port for MIDI audio input, a MIDI 5-Pin DIN port, and a button to activate the respective port.

We heard Your Music Creation and Recording Need!

Both N40 music box models come with the DIN 5 MIDI input and USB-C MIDI input (Host/Device Mode), allowing you to connect the Muro Box-N40 to any MIDI devices.

For detailed instructions on using MIDI external devices, please refer to this tutorial page.

※Please note that the button on the back is the switch for the MIDI device, “NOT” the power switch for the music box! The Muro Box music box is powered on as soon as it is plugged in. Simply keep it plugged in to maintain the power-on state; there is no “off” mode. If you really wish to turn it off to save energy, please unplug it directly. Plugging in the Muro Box is equivalent to turning on the power.

N40 should have 40 notes, but why are there 80 comb teeth in N40 Sublime?

In simple terms, the principle of “sublime harmony” involves overlaying two slightly offset frequencies of sound. Due to the physical properties of sound wave interference, the combined sound will continuously fluctuate in volume based on the difference in frequencies, creating a perceived tremolo effect.

To achieve the simultaneous emission of two frequencies with a slight offset on the Muro Box, we utilize the design of our patented cylinder. The Muro Box cylinder has eight symmetrical pins for each note’s plucking movement. As it rotates, when one pin moves upward, the diagonally opposite pin moves downward at the same speed. Therefore, if we place an additional comb on the opposite side of the cylinder, designed to move downward, both combs—one moving upward and one moving downward—will be activated simultaneously, creating a harmonious blend of frequencies with a slight offset.

The top view of the Muro Box-N40 Sublime Music Box clearly shows the four combs.

What is the difference in tone between the N40 Sublime version and the N40 Standard version?

The N40 Standard uses two combs (40 notes), producing a sound similar to the N20, with a crisp and bright tone.

The N40 Sublime music box differs from other Muro Box music boxes as it uses four combs working together to recreate the luxurious resonance of a high-end music box. Each note simultaneously strikes two comb teeth that are 14 cents apart, with a total of 80 comb teeth and 40 programmable scales, producing a rich and dense sustain.

The N40's comb scale is not sequential but rather interleaved!

Did you know that the scales of N40 are not in sequential order but are interleaved? N40’s two or four combs have their scales arranged in an alternating pattern, unlike a keyboard where the notes are arranged sequentially in ascending order.

Please take a look at the animation below, demonstrating the actual situation of “interleaved scales”:

Muro Box-N40穆風智慧音樂盒四片音梳的音階為交錯音符

Free Customized Services Included

Order a N40 Sublime music box and receive a complimentary custom laser-engraved nameplate and one personalized song arrangement (up to two minutes long).

The entire Muro Box series offers customized arrangement services, where professional arrangers adapt your specified songs and sections into arrangements suitable for music box playback. The music box shown in the image is the Muro Box-N40 Sublime.

Musical Arrangement

Lack of music arranging skills? No problem. With Muro Box’s experienced music arrangers and a complete 40-note range, your beloved songs will be faithfully represented in the classic music box.

If you prefer the entire song, please contact us to get a quote. After the arrangement is complete, we will provide a MP3 file for preview and offer two opportunities for revisions. After you approve it, the song will be uploaded to the music box before shipping, so you or the recipient can hear the customized song by simply powering on and pressing the knob.

The Custom Engraving Result on the Metal Nameplate of Muro Box-N40 Sublime Music Box

Laser Engraving

Engrave your motto or words for your loved one. If our customized music arrangement still cannot fully express your heart, let us use laser engraving to assist you.

Whether it’s words of blessing or a symbol of love, simply provide us with the text and image file, and we’ll customize and laser engrave it onto the metal nameplate on the front of your personalized Muro Box-N40 music box.

>> View More Customized Design Ideas

Add-On: Create My Playlist

(Only Public Songs in Muro Box App Library Are Applicable)

We offer a service to upload your selected publicly available tracks from the Muro Box app library and display them as your music box's exclusive playlist. The image shows the N40 Sublime Edition music box.

By purchasing this service, we will preset your exclusive playlist before the music box is shipped, so that when you press the button, the music box will instantly play ten carefully selected songs from our app’s public library. Additionally, you can customize the playlist’s cover and name, creating a personalized themed playlist (e.g., “Our Favorite Memories”), adding a surprise and conveying your feelings when giving the gift.

*This service is designed to enhance customization options for gift-giving. If not purchased, you can still use the app to freely choose and add songs from the public library to your collection after receiving the music box.

*If you can’t find your favorite song in our app’s library, please consider adding the customized arrangement service.

Upgrades of Muro Box-N40

Enjoy the Amazing Sensual Visual Audio Feast when you watch the N40 playing each note!
The Muro Box-N40 Music Box features a removable, fully transparent lid.

Brand New Detachable Transparent Lid

Complete 360-degree close contact, where all the mechanisms’ mysteries are touchable by your fingers.

Bigger! Higher Quality!

Continuing the classic imagery of “square within circle, circle within square” from the N20 series.
All-metal mechanism and one-piece solid wood box form this impressive music box (N40 Sublime is 4 kg, N40 Standard is 2.3 kg)

A top-down size comparison of the Muro Box-N40 Sublime, N40 Standard, and N20 Standard music boxes alongside a smartphone

Customers' Comments about N40 Sublime

Hanneke Debie and her collection of music boxes, which includes the Muro Box-N40 Sublime, N40 Standard, and a paper roll music box.

The music they play is beautiful and fills the entire room. It's not a soft tinkling toy, but a true instrument.

Hanneke

Since childhood, I have been deeply enamored with music boxes, especially the punched paper tape type. Today, I’ve transcribed the music from these paper tapes into the song library of the Muro Box App.

I initially purchased the N20, which impressed me not only with its elegant design and high-quality sound but also with its song-switching feature. So when N40 was released, I immediately pre-ordered both the Sublime and Standard models.

The N40 Sublime, with its special resonator, plays classical pieces with a majestic reverberation effect, reminiscent of the rich sounds from my grandparents’ antique music box. The N40 Standard, on the other hand, has a pure tone quality that’s ideal for reproducing serene melodies, such as those found in traditional nursery rhymes.

I can honestly say it exceeded all my expectations.

Siegfried

As fate would have it 😉, I saw for the very first time A MUSIC BOX. A music box that did not only have metal things, but also bells and a built-in harmonica!

This made me think… What if I could create a music box that I can program myself? Around this time I bought this Kalliope disc music box. It seemed to be a good inspiration point.

Now all that was left to do was learning how to automatise and program it.Alass, The Arduino-dragon proved too powerful for me.

Quite by accident, I discovered the old Muro Box-N20 campaign page on Indiegogo. When they asked for input, suggestions and feedback on their ideas. I imparted with them all the “wisdom” I had learned about the design of a music box and the theory behind it.

I can honestly say it exceeded all my expectations. The sound is spectacular and there are many beautiful songs available in the Muro Box app. My house is now continuously filled with beautiful melodies (and 2 lazy cats ).

Siegfried, a Belgian customer of the Muro Box-N40 Sublime Music Box, posing with his collection.

Clever Resonance Box Design

Duel Functions: Amplification and Storage

The packaging wooden box for the N40 music box transforms into a dedicated resonance box once assembled. When used together with the music box, it enhances the richness and resonance of the sound, making the music box’s tail notes more vibrant and full!

Unlike speakers, the sound mechanism of a music box cannot be controlled by a volume knob. The volume can only be reduced by using softer materials like cushioning fabric or silicone pads to dampen the sound waves transmitted through the wooden box to the surface. To amplify the volume and extend the resonance effect, the Muro Box-N40 dedicated resonance box is required.

We visited many manufacturers in Taiwan to study the characteristics and limitations of different materials to create a melodious tone for the music box. We finalized the design of the N40 music box’s wooden case by referencing instruments like guitars and kalimbas, and incorporating customer feedback.

We have designed a dedicated resonance box for the N40, available in the following four styles:

1. Millettia Laurentii (Chicken Wing Wood)
2. Pinewood painted in black walnut color
3. Pinewood coated with a clear protective finish
4. Unfinished pinewood
(As shown in the image, from left to right)

Customers who purchase the N40 music box will receive a complimentary unfinished pinewood resonance box, which also serves as the product’s packaging box. If you choose to upgrade to another version of resonance box, such as “Pinewood with Clear Coating,” “Pinewood with Black Walnut Coating,” or “Millettia Laurentii,” we will replace the default unfinished pinewood resonance box with the upgraded version you selected when shipping your order.

The world's first app-controlled and programmable music box, Muro Box-N40, offers the option to ship with a variety of resonance box styles as packaging.
On the left is the Muro Box-N40 Standard music box paired with a resonance box made of pine wood and coated with transparent lacquer. On the right is the Muro Box-N40 Sublime music box paired with an acacia wood resonance box. Both N40 music boxes continue to use the design of the N20 music box with a detachable resonance box.

The harder the wood used to make the resonance box, the clearer and more beautiful the reverb effect. Pinewood is the softest wood option, while Millettia laurentii (chicken wing wood) has a higher hardness.

The pinewood resonance box is available in two color options: natural pinewood with a clear protective coating and pinewood with a black walnut wood-colored finish.

Come and listen!
Experience the performance effects brought by resonance boxes made of different materials.

We selected the classic piece “The Old Clock” to help you compare the sound quality differences using a familiar melody.

0:00-N40 Sublime + Millettia Laurentii (Chicken Wing Wood) Resonance Box
1:10-N40 Sublime + Pinewood Resonance Box
2:18-N40 Standard Model + Pinewood Resonance Box
3:25-N40 Standard Model + Millettia Laurentii (Chicken Wing Wood) Resonance Box

The Resonance Box of the N40 also Serves as the Product Packaging Box

The design of the N40 music box incorporates the resonance box as the shipping container for the product, allowing for the storage of all the accessories needed for using the music box inside the resonance box.

The items shipped together are as follows: the N40 music box, the scratch protection cover for the music box lid, the music box’s outer box which also serves as the resonance box, the user manual, and the brand introduction card.

Box A: Power cord, USB-C adapter.
Box B: Sound Post x1, shock absorber x4, metal pad x4.

Note:
The resonance box also serves as the outer box of the music box. When shipping, we will place the music box inside the resonance box. Therefore, when purchasing an N40 music box, you will need to choose a resonance box for it. If you do not wish to upgrade or purchase a different style of resonance box, we will ship your N40 music box with the default unpainted pine wood resonance box at no extra charge.

This is an unboxing video we made using the N40 Sublime music box paired with the unpainted pinewood resonance box. It provides a preview of the packaging and accessories you will receive with the N40 Sublime music box.

The New feature will Open Your Eyes!

Any MIDI file that fits within the music box's note range can be placed on a USB flash drive and inserted into the Muro Box's MIDI input port. The music box will read the file and play it directly!

No need for an internet connection—just plug in a USB flash drive and start playing.

Any MIDI file that fits within the music box’s note range can be placed on a USB flash drive and inserted into the Muro Box’s MIDI input port. The music box will read the file and play it directly! This allows those who cannot connect to the internet or are not familiar with using the app to easily change songs on the music box.

Note 1: The maximum number of tracks on the USB flash drive is 100. Only single-track MIDI files can be read.
Note 2: MIDI file formats must be within the Muro Box’s note range:

  • N20: C3-A5 (excluding black keys)
  • N40: F2-C6 (excluding F#2, G#2, A#2, C#3)
    Middle C = C3 = 261.6 Hz)


Where to find MIDI files?

The best place to find music files is within the community dedicated to arranging for music boxes. For guidance, please refer to: How to Download Music from the Music Box Maniacs (MBM) Website.

Bonus: USB-Type C Adapter Included

A USB-Type C adapter will be included with your order, making it easier to connect a USB flash drive or other MIDI devices to your Muro Box music box.

Supports Portable Power Banks Easy to Carry

Both the N20 Standard and N40 series use USB-PD and can be powered by a portable power bank, allowing you to take your Muro Box wherever you go!

Compatible power bank specifications: Minimum of 30W USB-C power supply. Please use a model that supports 15V voltage and at least 2A current (such as 30W 15V/2A or 45W 15V/3A).

Please refer to the following power bank models used in our internal testing:

https://www.mi.com/tw/20000mAh-mi-power-bank-3-pro/specs/

The Muro Box-N40 Sublime music box can be connected to a portable power bank, making it easy to take and display on the go.
The Muro Box exclusive app allows you to easily set multiple playlists to play at different times, bringing the music box into your daily life and adding extra joy to your routine.

Preset Playback Time: Transform the Music Box into a Charming Alarm Clock

With the Muro Box exclusive app, you can easily set multiple timers, allowing the music box to become part of every important moment in your life, adding a touch of elegance and surprise to your daily routine!

Many customers choose to use the beautiful melodies of the music box as an alarm to wake them in the morning. Some stores use the timer function to make the music box a thoughtful timekeeper, while romantic users plan special surprises for anniversaries—playing specific songs at specific moments, infusing precious moments with deeper emotions and memories.

>>Learn More About Schedule Playtime

We Have Shipped to 50 Countries!

The successful crowdfunding results of the 20-note smart music box, Muro Box-N20, on many crowdfunding platforms, such as ZecZec, Indiegogo, GREEN FUNDING, and Wadiz.

The Muro Box music boxes are independently developed by Tevofy Technology Ltd., who own patents in the United States, Taiwan and China. Through multiple international crowdfunding campaigns and global cross-border e-commerce efforts, Muro Box music boxes have been produced and shipped steadily, with customers’ support from 50 countries worldwide.

Close-up photo of the patented mechanism of the Muro Box-N20 Music Box and the names of its components.

The World's First App-Controlled Music Box was Invented and Produced in Taiwan

The Muro Box Music Boxes are developed and manufactured by the Taiwan-based company,Tevofy Technology Ltd.. It includes services such as customized laser engraving and arrangement production, delivering to customers in over 50 countries worldwide.

The N40 music box builds upon the patented movement of the N20 model, which has been reliably exported for years, making it a new model you can trust.

Want to learn more about how the first generation of Muro Box-N20 was developed? Welcome to read its founders’ story.

Precise and Durable Industrial Design in Craftsmanship

Each vibration plate (comb) contains 20 different notes, and each note’s plucking action requires the precise assembly of 6 intricate components to control its movement. 120 tiny components form a 20-note cylinder, and one unit of Muro Box-N20 product comprises over 500 components.

The N40 Sublime consists of four combs and two 20-note cylinders, with over 1,000 components in total.

Each component has undergone countless experiments to ensure their optimal performance. Every Muro Box is a unique piece of craftsmanship that deserves your close appreciation.

Each vibration plate (comb) contains 20 different notes, and each note’s plucking action requires the precise assembly of 6 intricate components to control its movement. 120 tiny components form a 20-note cylinder, and one unit of Muro Box-N20 product comprises over 500 components.

Muro Box Products Were Co-Developed by Experienced Manufacturers in Taiwan

Active TV Media Coverage

▲This video was made by a famous TV news channel in Taiwan who invited the founders of Muro Box to introduce their products.

The Product Development Milestones of Muro Box

We have arranged the music box models developed by Muro Box in order of their release year.

2016 Start from Scratch
Start to design the Muro Box (abbreviated from “Music Robot in a Box”).

2017 Gain Patents and Mentor
US/China/Taiwan patents; Kyooh’s mentorship for producing music boxes.

2018 1st Campaign in Taiwan
Zeczec crowdfunding campaign for the 1st-generation N20 model. (15V DC power socket)

2020 Indiegogo Campaign
The first-generation N20 model with improved noise reduction and MIDI input jack, switching to a Type-C power source

2022 Muro Box Brand Store Opens
Selling N20 Standard version (with MIDI input jack and Type-C mobile power source) and N20 Lite version (without MIDI input jack, using a 15V DC power socket)

2023 Wabay/ Kickstarter /Indiegogo Campaign
N40 Sublime and Standard Models

2024 Green Funding Campaign |
N40 Sublime and N40 Standard Models

Derived from Japanese Technology, 40 years of Music Box Design and Production Culmination in Taiwan.

You may not know that, in the past, about 40 percent of music box movements in the world were actually made in Taiwan. Starting from producing music box movements for a Japanese brand as their OEM partner, Kyooh Precision Industry Co. Ltd. has absorbed the Japanese brand’s technology and know-how, allowing Kyooh to develop more intricate models.

Thanks to Kyooh’s mentorship on music box movement design and production, we (Tevofy Technology Ltd.) can invent the world’s first and only app-controlled music box and bring it to life. The success of Muro Box-N20 has shown the world that Taiwan has the most advanced technology to create the next brand new chapter for the music box industry.

Muro Box App Functions

No matter which model of Muro Box you have, you can enjoy the same composing functions and music cloud library.

You can enjoy the composer functions of the Muro Box App and choose songs to collect from the cloud music library with any Muro Box model. There are no restrictions on the length or quantity of compositions, and we even provide a series of tutorial videos made by our official music arranger. We can help you fulfill your composition dreams! Don't worry if you're not familiar with composition; the Muro Box App supports importing MBM songs, offering a collection of up to 50,000 tracks, ensuring you never get tired of the music box melodies!

How many songs will be preloaded in the music box?

If you haven’t ordered our customized music arrangement service, the music box will include 15 official complimentary tracks in the offline playlist. There will be famous classical music and children’s songs as well as some original music.

If you have ordered our music arrangement service, the melody you requested will be added to the offline playlist, while the initial 15 complimentary tracks we made will be stored in the online playlist for you. This allows you to directly play your customized melody by pressing the knob after you or the gift receiver unboxes the product. Your customized melody playing from the music box will touch his/her heart with a surprise!

Note: Search “N40 Official List” in the Muro Box App, and you will find the 15 complimentary tracks we provide.

Pre-programmed tracks in the world's first programmable app-controlled music box, Muro Box
Muro Box App supports searching tracks from Music Box Maniacs (MBM) for free! The rich music collection made by global music box fans can be found easily in our app!

Huge Music Box Melody Collection

Muro Box App supports searching tracks from Music Box Maniacs (MBM) for free! The rich music collection made by global music box fans can be found easily in our app.

In our app, you can easily explore a diverse collection of music box melodies created and shared by music box enthusiasts from around the world. New songs are added daily, and you’re welcome to add them to your personal playlist anytime. With a Wi-Fi connection, you can transfer your app playlist to the Muro Box for playback.
Whether you choose the N40 or N20 model, you’ll enjoy the same app library resources, with full access to select and save your favorite songs!

Specification Comparison of Different Models

▲ Please click the image to enlarge.

Model NamesN40 SublimeN40 StandardN20 StandardN20 Lite
FeaturesMuro Box Ultimate version: Superior music box performance A Must-Have for Collectors: A rare collectible itemTurn the Music Box into an Instrument: Fulfill your musical dreamsThe Perfect Gift ChoiceThe Perfect Gift Choice
Scales40 notes: From F2 to C6
(Excludes F#2, G#2, A#2, C#3)
C3 = Middle C (261.6 Hz)
40 notes: From F2 to C6
(Excludes F#2, G#2, A#2, C#3)
C3 = Middle C (261.6 Hz)
20 notes: From C3 to A5
(Excludes black keys)
C3 = Middle C (261.6 Hz)
20 notes: From C3 to A5
(Excludes black keys)
C3 = Middle C (261.6 Hz)
Number of Combs4 combs with 20 notes each2 combs with 20 notes each1 comb with 20 notes1 comb with 20 notes
Base MaterialFull Brass BaseZinc Alloy BaseZinc Alloy BaseZinc Alloy Base
Wooden Box MaterialsTaiwanese Acacia Wood (60+ years old)Hard Maple Original Color (can upgrade to black wood box with a fee)Hard Maple Original Color (can upgrade to black wood box with a fee)Light-colored Hard Maple
MIDI Input (for connecting with other MIDI devices) 5-Pin Traditional and USB-C MIDI Interfaces5-Pin Traditional and USB-C MIDI InterfacesUSB-C MIDI interfaceNone
Customized Melody ArrangementAvailable for All Models
Customized Laser EngravingFront metal PlateFront metal PlateFront Metal Plate / Wooden Box Side(s)Wooden Box Side(s)
Power SupplyUSB-C powerUSB-C powerUSB-C powerTraditional DC power adapter
Use Portable Power BankYes, it supports USB-C power supply with at least 30W. Please use a power supply rated for 15V and 2A or higher (30W 15V/2A or 45W 15V/3A).No

Product Specification of Muro Box-N40 Sublime

The world's first programmable app-controlled music box, Muro Box-N40 Sublime Version: Button Function illustration
The world's first programmable app-controlled music box, Muro Box-N40 Sublime Version: Music Range and Power/Midi Input Slots Illustration

Muro Box 

Operating Voltage 15V
Operating Current 3A
Product Size (mm) 160(W)x250(L)x95(H)
Weight (kg) 4kg

ADAPTER

Output Voltage 15V
Rated Electric Current 3A
Rated Power 45W
Input Voltage 90~264VAC
Frequency Range 47~63Hz
AC Electric Current (Typ.) 1A/115VAC ; 0.5A/230VAC

FAQ

How to Purchase a Muro Box?

N20 Series: Please place your order on our official website store:https://murobox.com/en/shop/

N40 Series: Currently available only for pre-order on the Indiegogo crowdfunding platform: https://www.indiegogo.com/projects/muro-box-n40-programmable-mechanical-music-box/x/37929358#/

You can visit our San Chong office to listen before purchasing. Please make an appointment and confirm availability before coming.
Address: 1st Floor, No. 16, Ren Ci Street, San Chong District, New Taipei City 241
Office Hours: Monday to Friday, 9:00 AM to 6:00 PM

For any questions, please contact us for assistance:
Line: https://page.line.me/435xygyd
Email: support@tevofy.com
Phone: (02) 2974-4649

Where can I try out the product in person?

Currently, we have display points in Taiwan, Hong Kong, and South Korea where you can try the product. Please email us to schedule a date with us: support@tevofy.com

Please Note:
N40: Currently available for trial only in our headquarter center in New Taipei City, San Chong District. N40 is not available for immediate purchase. It must be pre-ordered online.

N20:
In Taiwan, you can purchase it in stores only in our San Chong office or in Taichung modern music box museum store. If your music box does not require customization service, you can buy it in store. For customized laser engraving or melody arrangement service, you need to order the music box via our Muro Box online store. Other display locations only allow for test playing without product in stock. Be sure to request the local store’s unique Muro Box code after you visit it, and then you can use that coupon code to purchase it in our online store.

In Hong Kong:
-Wake Concept Store: Immediate stock available and offers custom laser engraving services.
-The Ukulele Store: Provides sample machines for trial. Orders can be placed on-site, with shipping from Taiwan within 2 business days (3 business days will be needed if adding customized engraving service).

How can I test playing the Muro Box music box online?

Please go to the Muro Box website’s live streaming page, and follow the instructions to log in with account and password. You will then be able to remotely control the live streaming device!

How long will it take to ship?

(Updated Jan 2025)

N20:
Shipping Time for Orders on Our Official Website:
– For non-customized models, shipping is within 2 business days.
– For customized laser engraving or arrangements, verification of laser engraving images or song files will be done via email or Line. Including communication and review work time, shipping is estimated within 3 business days for customized engraving and within 5 business days for customized arrangements.

N40:
Currently Only available for Pre-Order. Please refer to the product page for the actual shipping date.

Warranty Service

The one-year warranty and three-year limited repair service for this product are only available to customers who purchase through our company or designated partners.

One-Year Limited Warranty: Starting from the date of shipment, this covers defects in materials or assembly but excludes other accessories and damage caused by improper use by the consumer.

Three-Year Limited Repair Service: Shipping and repair costs will be calculated based on the actual situation.

Please Note: The warranty will be void if you open the Muro Box yourself. If repairs or inspections are needed, do not open the device yourself. Please return it to us to check if the issue is covered under the warranty.

Customized Arrangement Production Process

If you have purchased a customized arrangement along with your order, we will send you a form after receiving your order. Please fill in the song details, provide reference audio files or video links, and specify which two-minute segment you would like arranged. If you want a full-length arrangement, our arranger will evaluate the additional cost and confirm the fee with you via email.

After each arrangement is completed, we will:
Provide a Preview: Send you an MP3 file for review. You will have two opportunities to request adjustments.
Final review: Once the arrangement is approved, we will output the MIDI file and upload it to the music box. You will be able to hear the customized arrangement by simply powering on the music box and pressing the button.

Customized Melody Arrangement Form

How to confirm the content of customized laser engraving?

If you have purchased a customized laser engraving along with your order, we will send you a form after receiving your order. The form will include sample images, font options, examples, and available engraving sizes.

The text or image files you submit will be formatted into a preview by our designer. You will need to review and approve this preview before we proceed with the engraving.

N40 Customized Laser Engraving Form
N20 Customized Laser Engraving Form
N20 Wooden Box Engraving Form

What is the upload custom playlist service?

We offer a service to upload a custom playlist to your music box. You can use our free app to find and select 1 to 10 songs in the order you wish them to be played. Your music box will be pre-set to play this playlist upon shipment.

If you have purchased this service, we will upload your chosen playlist to the music box before it is shipped. When the recipient receives the music box, they will simply need to plug it in and press the button to play your custom playlist without any additional setup.

Note: Each music box can only have one playlist service, with a maximum of 10 songs selected from the app’s library, and you can arrange them in any order.

If this service is not purchased, the music box will come with a default playlist of official songs (N20 has 30 songs / N40 has 15 songs).

Upload Custom Music Box Playlist Form

Is it easy to control the music box using the app?

The Muro Box app is designed to be user-friendly and similar in interface to popular streaming music services like Spotify, Apple Music, and YouTube Music. On the main page, you can view the song list, create your own playlists, and play songs with a single tap.

The first time you connect to the music box, it may take a little time to follow the setup steps. Once connected successfully, the music box will automatically connect to the network whenever it is plugged in, without needing to repeat the setup process. Additionally, our app offers other features such as custom arrangements and alarm functions. You can download and explore these features for free!

To find and download our app, simply search for “Muro Box” on the App Store or Google Play on your phone.

How many songs are available in the app’s music library?

Our music library is continuously updated with new songs by talented arrangers and shared with the community. Additionally, we have integrated with Musicboxmaniacs.com (MBM), the largest music box community, expanding our library to nearly 50,000 songs. You can freely search, browse, and add songs to your playlists. We also offer official songs for free (30 songs for N20; 15 songs for N40).

Can I listen to music without connecting to the app?

Not familiar with connecting to the app? No worries! The music box comes pre-loaded with the official playlist (30 songs for N20; 15 songs for N40). Once plugged in, simply press the knob to play the default playlist. If you have a custom arrangement, it will be uploaded to the music box before shipping, so you can listen to your selected songs by just plugging in and pressing the knob, without needing the app.

How much storage space is available for songs in the music box? How many songs can be saved in the offline playlist?

The Muro Box music box plays MIDI files, and the hardware itself has flash memory that can store around 2,000 songs.

Thus, the maximum number of songs that can be stored in the offline playlist on the app is approximately 2,000. The music box can directly play the last synced offline playlist by simply pressing the knob.

However, we recommend that you create additional playlists to categorize your collection, such as by genre or tempo: sleep, pop, classical, 80s hits, etc. This way, you can play different playlists according to the situation, enhancing your listening experience.

To adjust the songs in the offline playlist. you need to connect the music box to the app, where you can add or remove songs from the offline playlist or drag them to change their orders in the offline playlist.

How many offline songs can be set on the music box?

Songs placed in the offline playlist can be played directly by pressing the knob on the music box. The Muro Box music box reads MIDI files for playback and has built-in flash memory that can store up to 100 songs.

To adjust the songs, connect the music box to the app, where you can add or remove songs from the offline playlist, or drag to reorder them.

Range and tempo limitations for music box arrangements

(1) File Format Restriction: Muro Box can only read single-track MIDI files and does not support other formats.

(2) Range Restriction:
N20: Range from C3 to A5, covering the white keys of a piano (excluding black keys).
N40: Range from F2 to A6, excluding F#2, G#2, A#2, and C#3.(Middle C = C3, 261.6 Hz)

(3) Track Length Restriction: Each song can be played for a maximum of 30 minutes as set in the app to prevent insufficient space on the mobile device.

(4)Playback Speed Restriction: At a BPM of 120, continuous single notes can be played with a minimum unit of eighth notes; thus, the fastest continuous single note can be 120 notes per minute. The maximum number of simultaneous notes = 10 (up to 10 notes can be played simultaneously).

Can I use the compositions I created for the N20 to be played on the N40?

The N40’s range is downward compatible with the 40, 30, 20, and 15 notes music boxes, including the Muro Box-N20. So, any compositions created for the N20, whether by you or other customers, can be directly played on the N40.

How to estimate import duties when shipping from Taiwan to overseas?

We will use the website provided by DHL to estimate the local import duties based on the product price. If you need assistance with the estimation, please email us at support@tevofy.com.

Why doesn’t the music box have a built-in battery?

Due to the complex safety regulations involved in transporting batteries, we decided from the very beginning of the design process not to include a battery, allowing the music box to be shipped to as many countries as possible.
If you need to use the music box on the go, the N20 Standard/ N40 Standard/ N40 Sublime models all support using USB-C power banks, making it easy to take the music box with you anywhere.

The Specifications of the Power Bank forMuro Box-N20 Standard / N40 Standard / N40 Sublime Music Boxes

Both the N20 Standard, N40 Standard and N40 Sublime use USB-PD and can be powered by a portable power bank, allowing you to take your Muro Box wherever you go!
(Note: The N20 Lite uses a traditional DC power supply and does not support external power bank functionality.)

Compatible power bank specifications: Minimum of 30W USB-C power supply. Please use a model that supports 15V voltage and at least 2A current (such as 30W 15V/2A or 45W 15V/3A).

Please refer to the following power bank models used in our internal testing: https://www.mi.com/global/product/mi-50w-power-bank-20000/

Does the Muro Box app require a monthly subscription?

No, it doesn’t. You can consider the Muro Box as an “unlocked” or “one-time purchase” music box.