Features: FPS Antenna: Built-in passive antenna Communication method: GPS/LBS Battery capacity: 500mAh Voltage range: 3.7-4.2V Working ambient temperature: -20°C~70°C GSM frequency band: GSM850/900/1800/1900MHZ GPS Receiver: High Sensitivity GPS Receiver Waterproof function: life waterproof External power supply form: USB Interface text: Chinese and English Alarm mode: vibration alarm, power failure alarm, mobile alarm, fence alarm, overspeed alarm Product size: 4*4*1.6
