产品功能：
1.SOS紧急求救功能
2.四组简码拨号功能
3. 功能
4.卫星定位追踪功能
5.双向通话功能
6.定位轨迹功能
7.动态位置回报功能
8.简讯回报地址及位置(地图)
9.低电量警讯

产品规格：
1.GSM ：MTK EGSM/(GPRS Class 12 (900/1800/1900 ( default tri-bands ) )         
2.GPRS class 12
3.20 channels tracking
4.Superior sensitivity: -159dBm tracking
5.Built-in rechargeable 750 mA/h Li-Ion battery
6.Tracking ( by time interval, speed interval )
7.Receiver ：L1, C/A code
8.Geo-fencing control ( SMS )
9.GPS Chipset ：SiRFstarIII
10.Voice communication
11.Mini USB port for charging and data exchanging