Clear settings or reset
To clear all the pairing settings from 
the headset, switch off the headset, 
and press and hold the power key and 
the answer/end key until the red and 
green indicator lights start to 
alternate.
To reset the headset if it stops 
functioning, although it is charged, 
plug the headset into a charger, and 
press the power key and the answer/
end key at the same time.