Main function
1. Press power key for 3s to power on or off.
2. Short press can play/ pause. Disconnect Bluetooth in
BT mode.
3. Volume up/ Next
4. Volume down/ Previous
5. Answer/Reject/Dial call
6. Screen display user interface
7. Charging with USB cable, connect to DC 5V or PC.
8. Blue LED on when working, Red LED on when charging.
9. FM/M mode change, BT
FM
Time
10
．
MIC whole
Charging can reset the device if work abnormally.
