Specification Name 4G Car GPS TrackerDimensions 112mm x 78mm x 28mm 4 4 x 3 1 x 0 9 Network GSM GPRSBand 850 900 1800 1900MhzGPS Sensitivity 159dBmGPS Accuracy 5 metersWall Charger 110 220V input 5V 1A outputBattery Rechargeable and replaceable 3 7V 7800mAh Li ion batteryStandby Time Up to 120 daysTime To First Fix Cold status 45s warm status 35s hot status 1sStorage Temperature 40°C to 85°COperating Temperature 20°C to 55°CHumidity 5 95 non condensingWeight 300gFeatures Long Standby Time It has built in 3 7V 7800mAh Li ion battery can standby up to 120 days Overspeed Alarm This alarm works only under continuous positioning mode When the unit speed is exceed the speed you presetted it will send message speed alarm to the admin number every 5 minutes Shake Alarm After you did the shake alarm setting please keep the tracker being stationary for 5 minutes then this function will start working It will send SMS sensor alarm to the admin number when the unit get shocked Sleep Mode Sleep by time mode After did this setting tracker will only work for 5 minutes after being waked up and back to sleep mode GPS will shut off and GSM will works in low consumption mode SMS call will can wake up the tracker Sleep by shock sensor mode After did this setting if no shock for 5 minutes the tracker will work under sleep by shock mode GPS will shut off GSM will works in low consumption Vibration SMS call will can wake up the trac