Jeasun OBD2 Charging Cable - 16Pin OBD II Male to Mini USB Smart Car Charging Cables for Gps DVR Cell Phones 3 Meters Wire length: 3 metres(10 feet), High efficiency conversion rate from 95% to 98% when 12V input, and from 88% to 90% when 24V input Free up your cigarette lighter socket and add a reliable dedicate power to your DVR Mini USB Direct Hardwire Car Charger Cable Kit for DVR Dash Cam Vehicle Camera Recorder It can be and can work in normal condition when restored, Long term stable and reliable quality Overcurrent protection, Short-circuit protection, Waterproof design