... /circuit; 3.Tracking and monitoring; 4.Excessive speed alarm; 5.CDMA(option), GSM, GPRS GPS GRPS car trackerSpecification/parameter:Working voltage ... Device, GPS Antenna, GSM Antenna, TTS voice report device,Power Supply cable, Panic Button, Lock Vehicle relay, Monitor Mic ... .Application to:Taxi, passenger vehicle, bus and any other autos ...