Regional alarm SOS Emergency Alarm Support Phone calls Low power consumption, long standby, ... 850/1900 MHzGPRSClass 12 , TCP/IP build in GSM Modulechanneltrack 20 SatelliteGPS sensitivity-159dBmTime To First FixCold status ... , Warm status 35s, Hot status 2sAntennaBuilt-in GPS,GSM AntennaBattery3.7V DC,1050 mAH Li-ion batteryStandbyGPS work ... -20 ~ +70 CAR GPS track,Support Regional alarm,SOS Emergency ...