... powered gps tracker JT600 1, Waterproof 2, powered by sun long standby battery 3, two-way voice function 4, SOS solar ... JT600 1.Waterproof2.Solar power working indication3.SOS help report4.Long Standby time up to 2 months (big capacity battery)5 ... ,GPS GPRS Tracker,Vehicle GPS Tracker,Software GPS Tracker,Tracking Device,Car GPS Tracker,Personal GPS Tracker,,Mini GPS Chip Tracker ...