LED Display
Button
Function
Power on/off
Mute or recover the volume
MUTE
Cycle through different inputs
MODE
Turn up volume
VOL+
VOL-
Turn down volume
Previous track
Pause/Play
Next track
Choose sound effect for music
Choose sound effect for movie
Choose sound effect for news
Choose Bluetooth mode
BT
USB repeat mode
3D surround sound on/off
3D
Auxiliary input