1 LED: Shows the working status.
2 Power on/off/volume knob: Turn on/off the machine. And
decrease the main volume.
3 DC-5V: DC-5V Micro USB charge port.
4 LED: Will be on when charging.
5 EQ: Press to select the different EQ.
6 Light ON/OFF: Switch the flash light on or off.
7 : Under FM/USB/TF/Bluetooth mode, short press to move
to next channel/track.
8 : Under USB/TF/Bluetooth mode, short press for play
and pause; Under FM mode, short press: station selection
and frequency modulator alternation, long press for
automatic search.
9 : Under FM/USB/TF/Bluetooth mode, short press to move
to previous channel/track.
10 Mode: Chang to different function.
11 AUX: 3.5mm aux in jack.
12 TF slot: Play the Mp3 file from TF card.
13 USB slot: Play the Mp3 file from USB.
14 MIC-IN: Microphone-in
15 MIC-VOL Knob: Adjust the Microphone volume.
16 ECHO knob: Select a different Echo.
17 Treble Knob: Adjust the treble.
18 Bass Knob: Adjust the bass.
Bluetooth:
Turn on the speaker, it comes into the Bluetooth mode
directly. After pairing, the device, it will play the music, Short
Press to Play/Pause, press and to Prev and Next. Long
press and to turn down and turn up the Volume.