Gsm/gprs/gps Tracker

GSM/GPRS/GPS tracker
1. Bands(900Mhz/1800MHz 900-b, 850Mhz/1900Mhz 900-p)
2. Remote control by cell phone
3. Listening in
4. Alarm report to your cell phone by short message
5. 4 user s phone numbers
6. LED indicator
7. Tracking by cell phone
8. Auto position report
9. Remote cut off engine
10.Power off alarming
11.Overspeed alarm