Product information:
Resolution: None
Material: Plastic
Overall size: diameter 40X16

GPS antenna: built-in passive antenna
Communication method: GPS/LBS
Battery capacity: 500mAh one
Size: 40 * 40 * 14 (mm)
Voltage range: 3.7-4.2V
Working environment temperature: -20 ~70
GSM frequency band: GSM850/900/1800/190OMHz
GPS receiver: High sensitivity GPS receiver