Muro Box-N20 Standard

Music Box Product Tutorial

Use and Care Instructions

① Continuous Playing Time

We recommend limiting continuous playback to a maximum of 2 hours at a time, followed by allowing the music box to rest and cool down for about 30 minutes before further use. Giving the device proper rest helps minimize component wear and extends the product’s lifespan.

② Heat Dissipation and Condensation

If you notice slight fogging or condensation on the inside of the music box’s top cover after prolonged playback, there is no need to worry. Simply turn off the power and let the device rest for a while; once the condensation naturally clears, you can resume normal use. The internal components are coated with a specialized high-temperature-resistant and anti-rust protective oil, ensuring reliable protection.

③ Care and Maintenance

Do not remove the top cover or apply any additional lubricants yourself. Doing so may damage the original protective coating, adversely affecting product performance and reducing its lifespan.

④ Settings for Extended Playback

If you need to play music for an extended period, we recommend using the Scheduled Playlist feature. Set an interval of approximately 30 minutes between each playlist’s start time to give the music box regular breaks to cool down, further reducing component wear. For detailed setup instructions, please refer to the “Scheduled Playlist” tutorial.

N20 Product Tutorial

1. Powering On / Starting Playback

(1) Connect to Power

Take the power cable out of the box and connect it to the power port labeled “15V 3A” on the back of the music box.
Once plugged in, the music box will automatically power on and play a 5-note chime (Do–Mi–Sol–Si–Do).
Press the knob to play the factory default offline playlist (your custom selected song or the 15 official preset songs).
To change the songs or rearrange the order of the offline playlist, please pair the device with the Muro Box App first, then edit the offline playlist in the app.
No Power-Off Mode: Muro Box turns on as soon as it is plugged in; there is no built-in “power-off” switch or mode. We recommend keeping it plugged in for everyday use so it is always ready to play. If you wish to save power, simply unplug the power cable.

(2) Using the Knob to Control Playback

Press once: Play/Pause
Turn right: Next song
Turn left: Previous song

2. Connecting to the Muro Box App

(1) Download the Muro Box App
Search for “Muro Box” on the App Store or Google Play to download the official app for free.

(2) First-Time App Pairing
Log in to the Muro Box App, tap the gear icon in the lower right corner > tap “Connection Settings”.

After you login to the Muro Box APP, click on the gear icon to go to the settings page.
Accept to receive firmware update notification, click on the button “Muro Box Connection Setting”.
Follow the app’s 4-step instructions to complete the WIFI connection setting. You can watch the following tutorials:

*For more detailed operating instructions, please refer to the tutorial video below (applicable to both N20 and N40):

For iOS phone users
For Android phone users

(3) Troubleshooting

If you experience connection issues and cannot proceed to the next step, please tap the gear icon in the app menu, select “Report an Issue,” and fill out the form.
If your issue can be resolved by our customer support team, we review submissions daily and will reply as soon as possible. If engineering assistance is required, it will be handled during regular business hours on weekdays.

3. Search & Play Songs

(1) Searching for Songs in the Muro Box App

Beyond the offline playlist, you can also search the music library within the Muro Box App to preview, play, and add songs to your custom playlists at any time.

(2) Disabling Automatic Song Title Translation (Optional)

By default, the app automatically translates song titles based on your phone’s system language.
If you prefer to display the title in the original language used by the uploader (e.g., English, Japanese, Korean, or German), follow these steps to turn off auto-translation:

Tap your profile avatar > tap “Translation” > toggle “Auto-translation” to OFF (enabled by default).

(3) Can’t Find the Song You’re Looking for in the App?

If the search results are not many, you can also try to explore more melodies from the world’s largest online music box community: Music Box Maniacs (MBM). Please view this tutorial:

If the above methods do not help you find a satisfactory music file, you may consider purchasing our customized arrangement service.

4. Compose Music via Muro Box

(1) Arranging Music with the App

All of the Muro Box products have the same app functions, including composing music directly on our app. Just a few clicks on the app, you can enter notes directly to complete your music creation and the Muro Box music box will become your exclusive pianist!

(2) Essential Guide to Music Box Arrangement:

File Format Limitation:
Muro Box can only read single-track MIDI files and does not support other formats.
Note Range Limitation:
N20 Range: C3 to A5 (white keys only, excluding black keys).
N40 Range: F2 to A6, excluding F#2, G#2, A#2, and C#3.
(Middle C = C3, 261.6 Hz). Before using arrangement software, ensure that the middle C in the software is set to C3 or C4 to avoid playback errors in the music box’s note range.
Playback Speed Limitation:
At a tempo of BPM = 120, the shortest continuous note unit is an eighth note. This means that at this speed, the fastest continuous single notes can play at 120 notes per minute.
Maximum Simultaneous Notes: 10 (up to 10 notes can be played simultaneously).

For recommended music box arrangement tools and external MIDI keyboards, click here to learn more. We also invite you to read the article “How to Bring Your Arrangement Creativity to Life with a Music Box” for more tips and techniques on arranging music for the Muro Box.

5. Connect with Other MIDI Device

The following models have a MIDI input slot on the backside of the music box for you to connect it with a MIDI keyboard/ computer: N20 Standard, N40 Standard, and N40 Sublime. Please read the following tutorial to connect your MIDI device with the music box!

6. More Features Await You!

For a detailed introduction to Muro Box’s features, please refer to our FAQ’s first question: “How to Use Muro Box”.

Clicking it will provide detailed blog explanations for each feature setting.

【Welcome to Join Our Global User Community!】

This is an international group for discussing how to use Muro Box and its app to create wonderful melodies for you and your loved one!

This group is only available for customers who have already purchased Muro Box.

Please carefully answer the 3 questions when joining the group:

Have you liked the Muro Box Global Fan page already? If not, please go give it a like!
Have you purchased a Muro Box already? Yes/No
Please indicate your customer Name and the Email you provided to Muro Box.

【What Will We Share in this Group?】

Tutorial Videos and Handouts
App-related announcements: problem-shooting, version updates, new features survey
Melodies and Composers we recommend
Melody Composing Requests and Contests