It is a complete GSM / GPRS / GPS vehicle alarm system that can protect all types of cars, trucks, taxis, jeeps, as well as other vehicles. It combines the latest GSM and GPS tracking technology, radio frequency communication, and voice control system. We are proud to say that it is an advanced, high-tech, and good quality system. How does it work? Main features, Tracking functions, - Dual location tracking covered, Locate your vehicle through both GPS positioning and GSM base station - Support GPRS and SMS to transmit data and recession commands - Real-time or ftp-set tracking interval time by SMS / GPRS; - Position report by customizable distance interval - Point routes reports.