Main feature: 1,GPS tracker with waterproofshell 2,build-in shock sensor 3, large capacity battery Product Description: Model: ... PDA cell phone and googleearth.Features & Functions1,Waterproof shell,Built-in large capacity 6000MA battery, long standby time of 100 ... .21,Low batttery alarm function22,Check the vehicle status23,Multi area management24,Automatic update positions of vehicle turns25,Data ...