Introduction
Thank you for choosing the KOMFOTTEU 88-Key Digital Piano. This instrument is designed to provide a realistic piano playing experience with its semi-weighted keys and versatile functions. This manual will guide you through the setup, operation, and maintenance of your new digital piano, ensuring you get the most out of its features.
Please read this manual thoroughly before using the product and keep it for future reference.
Safety Instructions
- Do not expose the instrument to direct sunlight, high temperatures, or excessive humidity.
- Avoid placing the instrument near heat sources such as radiators or stoves.
- Do not use or store the instrument in dusty or dirty environments.
- Keep the instrument away from water and other liquids.
- Use only the provided power adapter.
- Do not attempt to disassemble or modify the instrument. Refer all servicing to qualified personnel.
- Ensure the instrument is placed on a stable, flat surface to prevent accidental falls.
- This product is suitable for ages 3 and up. Adult supervision is recommended for young children.
Package Contents
Please check that all items are present in the package:
- 1 x KOMFOTTEU 88-Key Digital Piano
- 1 x Carrying Bag
- 1 x Sustain Pedal
- 1 x Power Adapter
- 1 x Instruction Manual

Image: Overview of the included accessories, including the carrying bag, sustain pedal, and power adapter.
Product Overview
Control Panel and Interfaces
Familiarize yourself with the various ports and controls on your digital piano.

Image: Detailed view of the multiple interfaces on the piano, including USB/MIDI, Earphone, Microphone, Sustain Pedal, and MP3 input ports.
- USB/MIDI Port: For connecting to computers, tablets, or other MIDI-compatible devices.
- Earphone Jack (3.5mm): For private practice with headphones.
- Microphone Input: For connecting an external microphone.
- Sustain Pedal Input: For connecting the included sustain pedal.
- MP3 Input: For connecting external audio sources to play along with.
- Power Button: To turn the piano on/off.
- Volume Control: Adjusts the overall output volume.
- Function Buttons: Access various features like tones, rhythms, demo songs, metronome, recording, etc.
Setup
1. Charging the Battery
The digital piano has a built-in rechargeable battery. Before first use, fully charge the piano for approximately 4 hours using the provided power adapter. A full charge provides about 12 hours of continuous use.
- Connect the power adapter to the DC IN port on the piano.
- Plug the adapter into a standard wall outlet.
- The charging indicator light will illuminate. It will turn off or change color when fully charged.
2. Connecting the Sustain Pedal
The sustain pedal enhances your playing by allowing notes to ring out longer.
- Locate the SUSTAIN pedal input port on the piano's rear panel.
- Insert the plug of the sustain pedal firmly into this port.
3. Powering On/Off
Press and hold the Power button (usually located on the control panel) to turn the piano on or off.
Operating Instructions
Basic Playback
Once powered on, the piano will default to a standard piano tone. Simply press the keys to play.
Adjusting Volume
Use the dedicated volume control buttons or knob (if present) on the control panel to increase or decrease the sound output.
Selecting Tones and Rhythms
Your piano features 128 tones and 128 rhythms.
- Press the Tone button, then use the number keys or +/- buttons to select a desired tone.
- Press the Rhythm button, then use the number keys or +/- buttons to select a desired rhythm.
- Press the Start/Stop button to begin or end rhythm playback.

Image: Visual representation of the piano's multifunctional capabilities, including tone and rhythm selection.
Playing Demo Songs
The piano includes 20 demo songs.
- Press the Demo button.
- Use the number keys or +/- buttons to select a demo song.
- Press Play to start the demo song.
Metronome Function
The metronome helps with timing and rhythm practice.
- Press the Metronome button to activate/deactivate.
- Adjust the tempo using the appropriate controls (refer to your piano's specific button layout).
Recording and Playback
Record your performances and play them back.
- Press the Record button to start recording.
- Play your desired piece.
- Press the Record button again to stop recording.
- Press the Play button to listen to your recorded performance.
Transpose Function
The transpose function allows you to shift the pitch of the entire keyboard up or down.
- Press the Transpose button.
- Use the +/- buttons to adjust the transposition value.
Touch Sensitivity Adjustment
This feature allows you to adjust how the piano responds to your playing dynamics.
- Long press the Transpose+ key to activate/deactivate the touch sensitivity adjustment function.
- When active, the piano will respond with varying volume based on how hard you strike the keys.
Bluetooth Connectivity
Connect your digital piano wirelessly to other Bluetooth-enabled devices.
- Ensure Bluetooth is enabled on your external device (smartphone, tablet, etc.).
- Activate Bluetooth on the digital piano (refer to specific button or indicator on your model).
- On your external device, search for available Bluetooth devices and select "KOMFOTTEU Piano" (or similar name).
- Once paired, you can stream audio to the piano or use it as a MIDI controller for apps.
MIDI/USB Connection
Connect your piano to a computer or other MIDI devices for advanced music production and learning.

Image: Illustration of MIDI function connectivity with various devices like mobile phones, computers, and tablets.
- Use a USB cable (not always included, check package contents) to connect the piano's USB/MIDI port to your computer or device.
- Your computer should recognize the piano as a MIDI device.
- Open your preferred music software (e.g., Ableton, Logic Pro, GarageBand) and select the piano as your MIDI input device.
Maintenance
- Cleaning: Wipe the surface of the piano with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly. Do not use abrasive cleaners, waxes, or solvents.
- Storage: When not in use, store the piano in the provided carrying bag to protect it from dust and scratches. Store in a cool, dry place.
- Battery Care: To prolong battery life, avoid completely draining the battery frequently. If storing for a long period, charge the battery to about 50% every few months.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Volume too low; Headphones connected; Power issue. | Increase volume; Disconnect headphones; Ensure piano is charged/connected to power and turned on. |
| Keys not responding | Instrument off; Function mode issue. | Turn on the piano; Reset the instrument by turning it off and on again. |
| Bluetooth not connecting | Bluetooth not enabled on piano/device; Device too far; Interference. | Ensure Bluetooth is active on both devices; Move devices closer; Restart both devices. |
| Sustain pedal not working | Pedal not fully inserted; Faulty pedal. | Ensure the pedal plug is fully inserted into the correct port; Test with another compatible pedal if available. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | VD09987MN-MTFR |
| Number of Keys | 88 Semi-weighted keys |
| Dimensions (L x W x H) | 126.5 x 18 x 6.5 cm (49.8 x 7.1 x 2.6 inches) |
| Net Weight | 5.7 kg (12.5 lbs) |
| Material | ABS Plastic |
| Connectivity | Bluetooth, USB Type A (MIDI/USB), 3.5mm Headphone Jack, Microphone Input, MP3 Input, Sustain Pedal Input |
| Power Source | Rechargeable Battery / AC Adapter |
| Battery Charging Time | Approx. 4 hours |
| Battery Usage Time | Approx. 12 hours |
| Tones | 128 |
| Rhythms | 128 |
| Demo Songs | 20 |
| Special Features | Touch Sensitivity Adjustment, Transpose, Vibrato, Learning Function, Programming, Metronome, Recording, Drum Function |
| Recommended Age | 3 years and up |

Image: Dimensions of the KOMFOTTEU 88-Key Digital Piano and its accompanying carrying bag.
Warranty and Support
For warranty information and customer support, please refer to the contact details provided with your purchase documentation or visit the official KOMFOTTEU website. Keep your purchase receipt as proof of purchase.
If you encounter any issues not covered in the troubleshooting section, please contact customer service for assistance.

