1.GT.IN: Guitar Input
2.MIC: Microphone Input
3.USB: USB Por t
4.SD CARD: SD Card Slot
5.GT.VOL: Adjust the guitar volume.
6.ECHO: Adjust to control amount of Echo.
7.MIC VOL-/VOL+: Control the microphone volume in any mode.
8.VOLUME VOL-/VOL+: Control the Bluetooth/FM Radio/AUX Input/USB Input/SD
Input volume.
9.BASS: Adjust the bass level.
10.TREBLE: Adjust the treble level.
11. LIGHT/PAIR: Short press to switch the speaker light mode; long press PAIR to
enter pair mode or disconnect existing paired Bluetooth device.