... tracker with waterproofshell 2,build-in shock sensor 3, large capacity battery Product Description: Model: GPS104This tracker is a ... phone and googleearth.Features & Functions1,Waterproof shell,Built-in large capacity 6000MA battery, long standby time of 100 days. ... alone without installation, convenient and quick.Support external GSM antenna, GPS antenna, and external power supply for the tracker to ...