About this item Designed to free up your cigarette lighter socket and supply 24 hours continuous power to your dash camera via OBD connection, enabling your dashcam to keep working after you have parked the car. Dual working mode switch button integrated for your convenience: 1. ACC working mode, 5 minutes off when your car ACC is off; 2. Surveillance working mode, keeps working until it detects low battery voltage (11.6V). Obtaining power from the OBD interface only, with no interference in other OBD data communication. This cable can be used in dash cams with MINI USB PORT ONLY; please check your dash cam's interface carefully before buying! Cable length: 3.5 meters (11.5 ft), Input: 8V-36V Output: 5V/2.1A. Size: 1.57 x 4.72 x 2.36 inches.