... Main feature: 1,GPS tracker with waterproofshell 2,build-in shock sensor 3, large capacity battery Product Description: Model: GPS104This tracker ... googleearth.Features & Functions1,Waterproof shell,Built-in large capacity 6000MA battery, long standby time of 100 days.Powerful ... installation, convenient and quick.Support external GSM antenna, GPS antenna, and external power supply for the tracker to ...