1  Built-in SIRF StarIII Chipset, excellent for fixing the position even at a weak signal status. Work well even in areas with limited   sky view like urban canyons.

2 Built-in GSM/GPRS module,support 4-frequency GSM900/1800 MHz (850/1900 can opotion),working all over the world.                     

3 Excellent for fixing the position even at a weak signal status. 

4 Work well even in areas with limited sky view like urban canyons. 

5 Very Low power consumption 

6 Fast Signal Acquisition 

7 Support single location and continuous tracking                                                                                                                                                                           

8 Call (default), two-way call
9 Auto-answer
10 Low cell alarm
11 Mode shifting
12 SOS Emergency Alarm
13 Server shifting
14 Automatic time calibration
15 Remote monitoring

• A: Power                                      E: Predetermined Numder1
• B: MIC                                          F: SOS
• C: USB                                         G: Predetermined Number2
• D: Interface Switch                     H: Loudspeaker

GT680 , as a personal remote positioning device made up of GPS module and GSM/GPRS module, is compact in dimensions with high accuracy. On the basis of GPS satellites and under dynamic conditions, it can provide you with accurate and correct location information. With such features, it can be used to protect and look for our old people and children. It can also be used for safety purpose and other purposes, such as remote positioning to protect property safety.