1. SD port
2. USB port
3. MP3 Player Display
4. MP3 Player button
A: Short press: Play/Pause Long press: Search all the available FM Stations automatically
B: MODE: Short Press this button, then MP3 Player working mode switch between USB/
SD/FM/BLUETOOTH
TWS: Turn on two speakers, make them both under BLUETOOTH mode, then long press this button
on anyone speaker, and will have PROMPT TONE, then two speakers are under TWS working mode.
C: Press switch between RA (Repeat all)/RO (Repeat One)/RR (Repeat randomly)
D: Short press: Switch Previous Song, Long press Voice DOWN
E: Short press: Switch next Song, Long press Voice UP
F: Record function
5. XLR and 1/4 Connector for Mic 1 & 2 input
6. RCA (R/L) Line input & output
7. MP3 and Line Input Priority
8. Talkover: Press to switch Mic Priority
9. Mic 1 and Mic 2 input volume control
10. 5 band graphic equalizer
11. Mic Echo
12. Master volume control for total amplifier
13. Line/MP3 volume control
14. Volume control for Wireless Microphone A
15. Volume control for Wireless Microphone B
16. Power switch for Wireless Microphones
17. External battery charge connector
18. AC Power input
19. Power switch for amplifier
20. SPEAKER OUT to connect another passive speaker
21. AC Voltage 110/220V Selector