1, auto gps tracker 2, Overspeed alarm 3, Listening in 4, gprs tracker function auto gps trackerFunction and feature of car gps tracker:1. Bands (900Mhz ... phone numbers6. LED indicator7. Tracking by cell phone8. Auto position report9. Remote cut off engine10.Power off alarmingII) ... : -20C~75Ckits A GPS main panel, one relay, a GPS antenna, a GSM antenna, a bundle of 8PIN wire auto gps tracker