This kit is to be used for continuous charging and operating of the Tracki Universal Real Time Worldwide Mini 3G GPS Tracker. Use this adapter to connect your Tracki directly to your car's electricity ("hard wire" it). Connect the red and black wire to the car's circuit, and the USB cable to your Tracki. This kit is best suitable for cars, trucks, boats, motorcycles, ATVs, construction and heavy equipment, golf carts and more.