Main functions: 1. Real-time locating and tracking. 2. Geo-fence 3. Talk with device or listen in the device 4. SOS button 5. Overspeed alert 6. Support alarm and remote monitor 7. Support quick dialing buttons for 3 preset phone numbers Spec 1. Built-in SIRF Star III Chipset, excellent for fixing the position even at a weak signal status. 2. Work well even in areas with limited sky view like urban canyons. 3. Built-in GSM/GPRS module,band at gsm900/1800 or 850/1900mhz 4. Working all over the world. 5. Support voice call. 6. Support SMS communication or GPRS TCP connection. 7. Get the position information via mobile phone SMS, or examine the path on the Internet. 8. The available SMS takes the control command change tracing function or switch GPS. 9. Support establishes three telephone numbers. 10. Portable, compact size, low power consumption design. Size:68*40*20mm Weight:50g
