8
1. Play/pause button
2. Previous song/decrease music volume level
3. Mic volume +/-, slide switch
4. Echo+/-, slide switch
5. Music volume +/-, slide switch
6. Next song/increase music volume level
7. LED lights on/off
8. Power on/off; mode: Bluetooth/Micro SD card/USB
reader
9. Phone holder
10. USB charging socket
11. Micro SD card socket
12. Line-out socket
13. USB connectionkage
Included