Wireless Noise Cancelling Stereo HeadsetMDR-ZX770BN

Resetting the headset

If the headset cannot be turned on, or if it cannot be operated even when it is turned on, push the RESET button with a pointed object. The headset is reset, and turns off when it was on.

If the headset does not operate correctly even after resetting, initialize the headset to restore factory settings.