Resetting the headset
If the headset cannot be turned on, or if it cannot be operated even when it is turned on, reset the headset. During charging, press and hold both the L and R side buttons simultaneously for 7 seconds or more. The indicator (red) turns off once, then the headset is reset. Pairing information and other settings are not deleted by this operation.
If the headset does not operate correctly even after resetting, initialize the headset to restore factory settings.