Introduction
Thank you for choosing the BIGFUN 37-Key Electronic Keyboard Piano, Model BF-320. This musical instrument toy is designed to introduce young children, aged 0-7 years, to the world of music. It features 37 keys, multiple tones, rhythms, and interactive functions to foster musical talent and develop essential motor skills and hand-eye coordination. This manual provides detailed instructions for safe and effective use of your new electronic keyboard.

Image: A family enjoying playing with two BIGFUN electronic keyboards, one purple and one blue.
Product Features
- 37 Keys: Standard keyboard layout for basic musical exploration.
- Multifunctionality: Includes piano function, double speakers, ensemble mode, audio cable jack, keyboard drum, record/playback function, and automatic standby sleep function.
- Variety of Sounds: Features 8 distinct tones, 8 rhythms, 6 demo songs, and 4 percussion sounds.
- Power Options: Operates via USB power cord (DC 5V-1A adapter required, not included) or batteries (not included).
- Educational Design: Specifically designed for small fingers, promoting performance skills, confidence, hand flexibility, hand-eye coordination, and musical theory.
- Safety Certified: Certified by CPC children and conforms to RoHS safety certification.

Image: A young child focused on playing the purple BIGFUN 37-Key Electronic Keyboard, with musical notes floating around.
Setup
Powering the Keyboard
The BIGFUN Electronic Keyboard can be powered in two ways:
- USB Power: Connect the DC power connector of the provided USB power cord to the power jack at the back of the keyboard. Connect the other end to a USB power adapter with a DC 5V-1A power output (adapter not included).
- Battery Power: (Instructions for battery installation would go here if details were provided, e.g., "Open the battery compartment on the underside of the keyboard and insert 4 'AA' batteries, ensuring correct polarity.")
To turn the keyboard ON/OFF, use the power switch located on the top left of the control panel.
Connecting Microphone (if applicable)
If your model includes a microphone, plug the microphone jack into the designated audio input port on the keyboard. (Specific location not provided in JSON, but common for such toys).

Image: An overhead view of the purple BIGFUN 37-Key Electronic Keyboard, highlighting the control panel with buttons for tones, rhythms, volume, and the power input port.
Operating Instructions
Basic Play
Press any of the 37 keys to produce musical notes. The default sound is piano. Experiment with different key combinations to create melodies.
Volume Control
Adjust the volume using the dedicated volume buttons on the control panel. Press '+' to increase volume and '-' to decrease it.
Changing Tones (Instruments)
Select from 8 different instrument tones (e.g., Piano, Vibraphone, Organ, Guitar, Violin, Harp, Trumpet, Clarinet) by pressing the corresponding tone buttons (T1-T8) on the control panel.
Changing Rhythms
Choose from 8 rhythms (e.g., Rock 1, Rock 2, Disco, March, Reggae, Pops 1, Pops 2, Slow Rock) using the rhythm buttons (R1-R8). You can also adjust the tempo of the rhythm using the Tempo +/- buttons.
Demo Songs
The keyboard includes 6 pre-recorded demo songs. Press 'DEMO A' or 'DEMO B' to cycle through these songs. Press 'STOP' to end playback.
Recording and Playback
To record your own melody, press the 'REC' button. Play your desired notes on the keyboard. To stop recording, press 'STOP'. To listen to your recorded melody, press 'PLAY'.
Drum and Animal Sounds
Engage with the keyboard drum function or activate various animal sounds (Frog, Bird, Duck, Dog) by pressing their respective buttons for interactive play.
Maintenance
- Cleaning: Wipe the keyboard with a soft, dry cloth. Do not use abrasive cleaners or immerse in water.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: If using batteries, remove them if the keyboard will not be used for an extended period to prevent leakage.
Troubleshooting
- No Sound:
- Ensure the power switch is ON.
- Check battery installation or USB power connection.
- Increase the volume using the '+' button.
- Distorted Sound:
- Reduce the volume.
- Ensure batteries are not low.
- Keyboard Not Responding:
- Turn the keyboard OFF, then ON again to reset.
- Replace batteries if necessary.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BF-320 |
| Number of Keys | 37 |
| Dimensions | 17.17 x 6.77 x 2.24 inches |
| Item Weight | 1.33 pounds |
| Recommended Age | 0 - 7 years |
| Power Input | DC 5V-1A (USB) |
| Safety Certifications | CPC, RoHS |

Image: The purple BIGFUN 37-Key Electronic Keyboard with its length and width dimensions indicated.
Safety Information
This product has been certified for children's safety by CPC and conforms to RoHS safety certification. Always supervise young children during play. Keep small parts away from children under 3 years of age to prevent choking hazards. Do not expose the device to water or excessive moisture. Use only recommended power sources.
Warranty and Support
For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official BIGFUN website. Keep your purchase receipt as proof of purchase.