A: 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.
B: Short press: Switch Previous Song, Long press Voice DOWN
C: Short press: Switch next Song, Long press Voice UP
D: Press switch between RA (Repeat all)/RO (Repeat One)/RR (Repeat randomly)
E: Short press: Play/Pause
6.
XLR and 1/4 Connector for Mic input
7.
RCA (R/L) and XLR Line input
8.
XLR for Line output
9.
SPEAKER OUT to connect another passive speaker
10.
MP3 volume control
11.
Mic input volume control
12.
Mic Echo
13.
Line volume control
14.
Master volume control for total amplifier
15.
Volume control for Treble
16.
Volume control for Bass
17.
Volume control for Wireless Microphone A
18.
Volume control for Wireless Microphone B
19.
ON/OFF Switch for Wireless Microphone A & B
20.
AC Power input
21.
Voltage selector for 115V and 230V
22.
Power switch for amplifier
