... with audio report position support remote terminal support both GPS/GSM support monitoring GPS/GSM/GPRS tracker car /vehicle GPS tracking with ... 100g Network: GSM/GPRS Band: 850, 900, 1,800 and 1,900MHz GSM sensitivity: less than 102dBm GPS chipset: SiRF ... power: 3.7V DC lithium-ion battery, 1,100mA Battery lifespan: about 50 hours Operating temperature: -10 to 65°C Storage temperature: -20 to 70°C ...