1All Day Surveillance: The dash cam hardwire kit is connected to car battery or fuse power box, can uninterruptedly supply power for dash camera for 24 hours. 2Voltage Transformation: Dashcam hard wire kit is designed with built in high precision switching power supply module, which can transform 12V?30V input to 5V output. 3Wide Compatibility: This dash cam hardwire cable hardwire kit is suitable for most car models. It works for almost all car micro USB device, such as dash cam, mirror cam, Gps navigator and radar detector. 4Premium Material: Car dash camera hard wire kit is made of Abs, rubber and metal material, wearproof, scratch resistant, not easy to break, crack and aging. 5Easy Installation: Simple hidden wiring keeps the car neat and tidy and releases the cigarette lighter for connecting to more devices.