... phone and googleearth.Features & Functions1,Waterproof shell,Built-in large capacity 6000MA battery, long standby time of 100 days.Powerful ... district. The unit will send the message to the authorized numbers when it breaches the district.16,Power supply disconnection alarm ... current location on map on cellphone screen. 2,Get absolute address by SMS3,PC Installation software tracking. 4,Web server ...