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Functional operation
1. Earphone port
2. Power switch/ volume control
Power ON: rotate the knob to the right, it's ON if there is a "click" prompt tone
Power OFF: rotate the knob to the left, it's OFF if there is a "click" prompt tone
Volume up: rotate the knob clockwise
Volume down: rotate the knob counterclockwise
3. Mode indicator
USB input: red LED steady lit
Bluetooth input: blue LED steady lit
AUX input: green LED steady lit
4. Mode switch button
Press: USB-Bluetooth-AUX mode switch
Press and hold: disconnect Bluetooth and clear pairing information (Bluetooth connected
5. AUX input
6. USB connecting port /Active & passive speaker connecting port
7. Connect to active speaker
state)
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