The SP04 is a plug-and-play GPS vehicle tracker without wiring. It supports vehicle positioning, tracking, and anti-theft. This model is based on GSM / GPRS network and GPS satellite positioning system, built-in GSM and GPS antenna, built-in 2.4G attendance management functions. With the standard OBD II plug, tracker can be easily installed (takes less than 5min.) It is a perfect choice for all cars.