Power Magic Pro Battery Discharge Prevention Device for Parking Mode Hard Wiring Kit for Blackvue Dashcam Parking Mode Operation Prevents Car Battery Discharge by Preset Timer or Preset Voltage Cutoff Configurable Timer Setting (6 hrs~infinity) and Cutoff Voltage Setting (11.8V,12.0V l 22.8V,23.2V) Parking Mode On/Off Switch Easy to Install