... shell, 6000mah battery 4. High quality, Fast delivery 1. gps gprs gsm car vehicle Tracker TK1042. Auto Report 3. Waterproof shell ... ) This tracker is a newly product based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions ... viewing on mobile phone screen, get absolute address by SMS, GPRS real time tracking on web based server.7 Built-in ...