GPS tracking

system).
  SOS button send out exact location for immediate rescue/action.Press SOS button you can communicate with others by voice.
  Geo-fencing to restrict movement to a defined radius.
  No monthly service charges to be paid to the call center
  The major technological index of the device are in conformity with the international standard of GSM mobile phone

tracking!
  Locate the locator holder by the mobile phone via SMS (short messaging 

 Portable, compact size
  Build-in GPS personal locator.
  GSM /SMS communication or GPRS TCP/UDP connection .
  Works worldwide!
    Support 4-frequency GSM 850/900/1800/1900 MHZ.(Optional)
   Fast signal acquisition
  Support single location and continuous tracking
  Support  location triggered  by tracker
  Support  location triggered  by authorized cell phone
  Support  alarm and remote monitor
  Support quick dialing buttons for 2 preset phone numbers
  Support  check location by SMS  and Internet
  Monitors can track the person without interfering him, LIVE! Real-Time 

 GPS tracking

GPS tracking
Support single location and continuous tracking
Support location triggered by tracker
Support location tr