GPS vehicle tracker GPS104,coban original TK104,waterproof,standby time up to 4-12months Waterproof shell, give your tracker a best protection and ensure a normal work even in a moist enviroment. Built-in large capacity 6000MA battery, longest standby time up to 60 days & working time 30 days. However, it ONLY requires around 5 hrs for a full charging Powerful magnetic cover to absorb vehicle firmly, EASY hide it in a less-noticed place Real-time tracking, get FIRST-HAND data once it is in your demand 5.Movement alarm, Geo-fence alarm, shock sensor alarm, remote monitoring. 6.Support map viewing on mobile phone screen, get absolute address by SMS, GPRS real time tracking on web based server. Built-in high sensitivity GPS and GSM antenna to make it can be used alone without installation, convenient and quick. 8.Support for external GSM antenna, GPS antenna, and external power supply for the tracker to be installed on the device which can provide power for long-term using.