Based on GSM/GPRS network and GPS Satellite, enable to locate or monitir any remote targets via SMS or GPRS. 

Functions:

1. SMS & GPRS Tracking: Capable of text message (SMS) tracking on mobile phone or internet web tracking (GPRS);

2. SOS button for emergent help. When help is needed, you can press the SOS button and the device will call the pre-settled phone numbers for alarm.

3. Auto Time setiing & Positioning: Once turned on, it can search the GPS signal automatically and set the time on the watch automatically according to different time zone.

4. Support 3 pre-settled alarm phone numbers. you can press any alarm number button to ask for help actively. Once succeed, you will receive a SMS feedback including latitude & longtitude of its position directly in a web link to Google Earth, then you can real-time track it on mobile phone once your mobile phone support GPRS.

5. Auto reply. Once you call the tracker for its postion information from your mobile phone, the tracker will answer automatically and hang up to feedback its position immediately.

6. Speeding Aleart: a good way for parents to monitor the teenage's driving behavior secretly.

7. Two way communication and text message each other.

8. Low battery Alert: Alarms if a low battery is monitored.

9. Auto monitor: any of the 3 pre-settled number sends command to the  device, the device will call back the number automatically. Once hang up, the device will start secret auto-monitor status.