The 70mai OBD-II Hardwire Kit provides a permanent power supply to your dash cam, enabling the parking surveillance feature without needing to modify your vehicle's fuse box. This black cable connects directly from the OBD-II port to a USB Type-C connector, offering a simple plug-and-play installation that is compatible with all 70mai dash cam models. Designed for versatility, the kit supports input voltages from 12V to 30V, making it suitable for both 12V and 24V batteries, and delivers a steady output of 5V 2.4A. The 4-meter cable ensures you have enough length to route the wiring neatly through your car's interior. To give you more control over your setup, the device includes DIP switches that allow for four levels of voltage adjustment and six levels of time adjustment. Safety is integrated into the compact 65 x 65 x 17 mm housing through several built-in safeguards. You can use it with confidence knowing it features low voltage, overcurrent, short-circuit, overload, and reverse connection protections to keep your car's electrical system safe.