Mini Auto GPS Tracker Locater Vehicle Real Time GPS/GSM/GPRSThis mini tracker is a product based on the GSM / GPRS network and GPS satellite positioning system， It can track and monitor remote traget by SMS or internet.Simply insert a GSM sim card into the GPS unit.Whenever you call the unit it will respond with the coordinates of its location thru a SMS message.You can then use these coordinates on any mapping software (for example google earth) which will show where exactly the unit is located.Features : 1. 100% Brand New，High Quality2. Compact Design，ultra small size3. GPS locater，global avaliable4. Built in Li-ion battery，up to 5 days avaliable5. Real time tracking，SMS reporting ，never lost the track6. Phone SMS remote report7. Phone call sound bug remote listening8. Real time location tracking， track playback9. Support SMS and GPRS platform tracking10. Build-in spare battery， realize illegal shear line alarm11.Battery : 3.7V 400mAh12. Continuous talk : 150-180 mins13. Network : GSM/GPRS14. Size : Approx. 3.3 x 2.8 x 1.5cm(GPS Tracker L*W*H)15. Material : ABS16. Color : BlackNote : To use this device，you will need a active GSM SIM card(GSM only，CDMA or other kind is not supported)Installation Method : 1. Insert the SIM card，turn the power key on，soon the LED indicator is turn on，the device is booting，after 30s，LED goes off，the device is on2. Call the number of the SIM card installed in the device，and the phone call will be automatically go through，then you can hear the sound around the device3. Call the SIM card installed in the device，and hang up after the beep，soon the tracker will reply with a text message with the GPS information and battery information.The GPS information can also be viewed on your PC，just enter the address in the browsers. Package includes : 1 x Mini GPS Tracker1 x USB Cable1 x Power Adapter (Comes with a mini adapter according to your country :)