1)Anti-theft of the vehicle/ heavy equipment etc 2) Provide peach-of-mind for business 3) Personnel management 4) Taillights shape, easy to hide 5) Built-in GSM, GPS antenna, Support SMS / GPRS / Internet Network data transmission (GPRS / Internet instructions in CD package) 6) Support configures the settings remotely 7) SIM Card: support standard SIM card 8) Specification: 1. Network: GSM / GPRS 2. Band: GSM 850 / 900 / 1800 / 1900MHz 3. GPS chip: SIRF3 chip 4.GPS sensitivity: -159dbm 5. GPS accuracy: 5m 6. Time to first fix: cold status: 45s, warm status: 35s, hot status: 1s 7.Car charger: 12V-24V 8.Battery: 3.7V / 1000mAh rechargeable Li-ion battery 9.Size:75mm x 50mm x 24mm 10.Storage temperature: -40℃ to 85℃ 11.Operation temperature: -20℃ to 55℃ 12.Humidity: 5%-95% non-condensing 9) Including: Harness x1 (3Pin), CD disk x 1, User Manual x 1