Personal GPS Tracking System Specification1. Model :WTD-A012Q2. Picture Size ：64*46 *17mmN.W. :50g3. Technology Parameter ItemSpecificationDimension64mm x46mm x17mm(1.8”*2.5”*0.65”)Weight50gNetwork ModelGSM/GPRSGSM Frequency Channel850/900/1800/1900MhzChipSIRF3 chipGPS Sensitivity-159dBmGPS Positioning Accuracy5mFirst Boot DeviceCold status 45sWarm status 35sHot status 1sVoltage110－220V input 5VoutputLi-poBatteryChargeable changeable 3.7V800mAh Li-ion batteryStandby80hoursStorage Temprature-40°C to 85°CWorking Temperature-20°C to 55°CHumidness5%--95% non-condensing4. Main Functions Description1) Real-time online tracking2) History display3) Speed report4) Direction report5) Mileage report6) Geo-fence7) Over-speed alarm8) Lower power alarm9) Parking time report10) SOS 11) Sounds monitoring