Thinkware TWA-SH THINKWARE Hardwire Kit Cable for THINKWARE Dash Cams | Parking Mode | Impact and Motion Detection | Car Battery Drain Protection System | Alternative Power Supply From Fuse Box Connects the main dash cam unit to the vehicles fuse panel (Professional Installation Recommended) Enables Parking Surveillance mode with impact and motion detection when the car is parked Activates the built-in voltage meter in the main unit which monitors the battery level and automatically shuts off the device if low voltage is detected Connecting cable is 9.8 feet (2.98 meters) long Hardwiring cable is compatible with all THINKWARE dash cams (except F550)