Set the headset in charging status, then press the 
POWER and VOL – buttons simultaneously.
If you cannot use the headset even after resetting it, initialize the headset.
Press and hold the 
POWER button for about 2 seconds to turn off the headset.
Press and hold the 
POWER button for about 15 seconds.
The indicator (blue) flashes 4 times, and the headset is reset to the default setting. All pairing information is deleted.
