... 3, Alarm function 4, Software easy to install 5, User friendly NameReal-time gps trackerFunction1,Positioning and Tracking2,Support GPRS ... if GPRS drop4,Tracking by time, it send the location data to serve by time interval5,GPRS automatic re-connection ... chip rate)Tracking12 tracking channel at the same timeTime to fixReacquisition 2sWarm start 15sCold start 40sFirst fix 35sPosition accuracy ...