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, support 4-frequency GSM 850/900/1800/1900 MHz.

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