Specification:----------------(1) Size: 64mmx 46mmx 17mm(1.8�� x2.5�� x0.65��)(2) Weight: 50g(3) Network: GSM/GPRS(4) The network band: 850/900/1800/1900Mhz or 900/1800/1900Mhz(5) Chip: SIRF3 chip(6) GSM/GPRS Modular: SIMCOM340 or SIMCOM340(7) The sensitivity of GPS: -159dBm(8) GPS accuracy: 5m(9) The first start time: Cold status 45s / Warm status 35s/ Hot status 1s(10) Car charger voltage: 12��24V input/ 5V output(11) Portable charger voltage: 110��220V input/ 5V output(12) Battery: Chargeable changeable 3.7V 800mAh Li-ion (13) Standby time: 80 hours(14) Storage temperature: -40��C to +85��C(15) Working temperature: -20��C to +55��C(16) Humidity: 5%--95% non-condensingPackage Contents:----------------1 x Locator 1 x GPS Antenna1 x cable1x wall charger1x battery charger2x Battery