Having a good taste of life is an attitude.Features:Working Based on existing GSM/GPRS network and GPS satellites， Set multiple functions of security， tracking， monitoring surveillance， emergency alarms and management��this product can locate and monitor any remote targets by SMS or internet.Built-in GSM， GPS antenna， compact， elegant appearance.Support GPS and LBS (Location based service) double tracking solutions.Support SMS/GPRS/Internet Network data transmission Support configure the settings remotelySet multiple functions of security， tracking， monitoring surveillance， emergency alarms and management in its entirety.Used widely for vehicle and other moving objects tracking.Specifications:DIM 9.5*5.2*1.4cmNetwork GSM/GPRSBand 850/900/1800/1900Mhz GPS sensitivity -159dBmGPS accuracy 5mGPS start time Cold status 45sWarm status 35sHot status 1sCar power supply 12 V -24VBack up battery Chargeable 3.7V 700mAh Li-ion batteryStorage Temp. -40 to +85Deg.COperation Temp. -20 to +65Deg.CHumidity 5%--95% non-condensingPackage includes:1 x GPS Tracker1 x Microphone1 x Harness1 x Relay1 x Mini screwdriver1 x Remote controllerHave a beautiful day��