... , SMS (not GPRS, nearly zero fee) Advance GPS/GSM Vehicle Security System, GPS Tracker, Mobile GPS Tracker, Mini GPS tracker, Vehicle GPS ... Tracker Functions:Working with your Smart phone(i phone, Android system mobile) Work conditions: smart phone, GPS, SMS(not GPRS, nearly ... Location now ( can location your car worldwide)2)Engine control (system will start the engine)3)Lock/unlock your car( worldwide ...