A:Answer Hi ALEXX, Using the Bluetooth remote controller power setting, you can turn the camera on and off. For more information about the Bluetooth remote controller function and the estimated recording time of the camera, kindly refer to these links:
https://helpguide.sony.net/cam/1640/v1/en/contents/TP0000960301.html?search=remote%20controller%20power
https://helpguide.sony.net/cam/1640/v1/en/contents/TP0000912336.html?search=recording%20time
~Ralph
