Volume/light brightness adjustment keys:
Short press to change the volume, long press to change the brightness of the LED light.
Three levels of volume, press to change once.
Long press for 1 second to change the brightness. There are three brightness levels in total.

Learning mode tracks:
1. Little Star 2. Little Donkey 3. Mary has a little lamb 4. Small World 5. Dedicated to Alice 6. Painter 7. Canon

Auto demo key:
Press to play a total of 13 pieces of music. The LED light flashes in combination.

Music tracks
1. Little Star 2. Little Donkey 3. Mary has a little lamb 4. Small World 5. Dedicated to Alice 6. Painter 7. Canon 8. Childhood memories 9. Schubert's lullaby 10. Moon River 11. Scarborough fair 12. Canon 13. Mozart Sonatas

Voice switching key:
Press to change the instrument scale corresponding to 13 touch buttons, totaling 5 instruments.
Types of music instruments
1. Piano 2. Xylophone 3. Saxophone 4. Guitar 5. Jazz drum

Light mode:
Press to change the display mode of the 13 touch keys corresponding to the LED.
There are three modes in total.
1. Keyboard fully bright rainbow color 2. Light wave mode
3. Pressing the corresponding key will light up the light

Attention! When the battery level is low, a reminder will sound DIDIDI. Please replace the battery in a timely manner.