Product Description

Charateristics:
* 2 key quick dial
* SOS key, sent out SOS signal with precision position to monitor center
* Builded-in microphone with monitor function
* Display messages of speed, coordinates, position
* Can track position with SMS throught point to point
* Monitor center can track the position of moving object with SMS or GPRS
* Standby time 60-72H
* Lower power consumption
* CRT protocol, support B/S, C/S system

Parameters:
* Frequencies: GSM850/EGSM900/DCS1800/PCS1900
* Standby time: 60H
* Working temperature: -20__+60
* Key: power, mode, SOS, call1, call2
* Battery: 450Mah, 3.7V
* Weight: 70g
* Size: 65*46*17mm

Position:
* Checking: Relative can check the postion of the user real time at websit: http://jzdw.jy100.com
* User can binding 3 phone numbers, terminal will the position message of user send back to the 3 numbers