1 POWER ON/OFF
2 ">"Volume/Prev- : Press to next track .hold to adjust volume up .
3 "<"Volume/Skip+ : Press to previous track .hold to adjust volume down .
4 Microphone Volume adjustment .
5 Reverb depth adjustment .
6 Short press to play /pause audio , Long press to switch between 4 sound effects, to hear a drop after switching
Magic sound, there are 4 kinds of sound effects.
7 Short press mode switch , Long press the light switch .
8 One-click silence : When playing music , short press to eliminate the original song into the accompaniment,
9 AUX OUT, Headphone or PA Jack
10 TF / Micro SD card slot for MP3 Playback
11 DC 5V, USB-C Charging Port
12 USB Port for MP3 Playback