M SANMERSEN 37 Keys Portable Electronic Keyboard
M SANMERSEN Kids Piano Keyboard
User Manual
Brand: M SANMERSEN | Model: 37 Keys Portable Electronic Keyboard
Introduction
Thank you for choosing the M SANMERSEN 37-Key Kids Piano Keyboard. This portable electronic keyboard is designed to introduce young beginners to the world of music, offering a variety of tones, rhythms, and interactive features. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure a fun and educational experience for children aged 3-7 years.
What's in the Box
- 1 x M SANMERSEN 37-Key Kids Piano Keyboard (Pink)
- 1 x Microphone
- 1 x USB Power Cable
Setup
Power Supply
The keyboard can be powered by either 3 AA batteries (not included) or the provided USB cable. For battery installation, open the battery compartment on the underside of the keyboard and insert 3 AA batteries, ensuring correct polarity. Alternatively, connect the USB cable to the keyboard's DC 5V port and a compatible USB power source.

Figure 1: Dual Power Supply options (3 AA batteries or USB cable).
Microphone Connection
Locate the microphone jack on the side of the keyboard. Insert the microphone plug firmly into the jack. The microphone allows children to sing along while playing. Note: The microphone is designed to be quiet for safety reasons.

Figure 2: Microphone connection point.
Video 1: Demonstration of battery installation and various features of the M SANMERSEN Kids Piano Keyboard, including microphone use and different sound modes.
Operating Instructions
Basic Functions
- Power On/Off: Press the "Power" button to turn the keyboard on or off.
- Volume Control: Use the "Volume +" and "Volume -" buttons to adjust the sound level.
- Tempo Control: Use the "Tempo +" and "Tempo -" buttons to adjust the speed of rhythms and demo songs.
Musical Features
The keyboard offers a variety of musical options to explore:
- 8 Tones: Select from different instrument sounds including Organ, String, Guitar, Flute, Music Box, Piano, Violin, and Xylophone using the T1-T8 buttons.
- 8 Rhythms: Choose from various rhythm styles such as Blue, Ballad, March, Euro, Fusion, Polka, Disco, and Tango using the R1-R8 buttons.
- 19 Demo Songs: Press the "DEMO A", "DEMO B", or "DEMO C" buttons to play pre-recorded demo songs.
- 4 Drum Sounds: Access different drum sounds by pressing the dedicated drum buttons.
- 4 Animal Sounds: Play animal sounds (Dog, Frog, Duck, Bird) using the corresponding buttons.

Figure 3: Overview of keyboard functions and features.
Recording and Playback
The keyboard allows you to record and play back your musical creations:
- Record: Press the "REC" button to start recording your playing.
- Play: Press the "PLAY" button to listen to your recorded melody.
- Stop: Press the "STOP" button to stop recording or playback.
Chord Function
The keyboard supports chord playing. When three or more fingers are pressed simultaneously on the keys, the electronic piano will produce different sounds to enrich the harmony, making the music sound more complete and beautiful. This feature helps children understand basic musical harmony and improves hand-eye coordination.

Figure 4: Demonstration of the chord playing feature.
Maintenance
- Cleaning: Wipe the keyboard with a soft, dry cloth. Do not use abrasive cleaners or immerse the unit in water.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove batteries to prevent leakage.
- Battery Care: Always use new batteries of the same type. Do not mix old and new batteries or different types of batteries. Dispose of used batteries responsibly.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| No sound from keyboard. | Low battery, power off, or volume too low. | Check batteries or USB connection. Ensure keyboard is powered on. Increase volume using "Volume +" button. |
| Microphone is too quiet. | Microphone designed for low volume for child safety. | This is normal operation. Ensure microphone is fully plugged in. |
| Keys not responding. | Power issue or temporary malfunction. | Turn the keyboard off and then on again. Check power supply. |
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 17 x 7.5 x 2.5 inches |
| Item Weight | 1.39 pounds |
| Manufacturer Recommended Age | 36 months - 7 years |
| Keys | 37 |
| Tones | 8 |
| Rhythms | 8 |
| Demo Songs | 19 |
| Drum Sounds | 4 |
| Animal Sounds | 4 (Dog, Frog, Duck, Bird) |
| Power Supply | 3 AA Batteries (not included) or DC 5V USB Cable |
Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your product packaging or visit the official M SANMERSEN website. Keep your purchase receipt as proof of purchase for any warranty claims.
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