... tracker for pet, kid,elder people 2, with key ring hole 3,listen in function 4,interval time position refresh Applications: Monitoring ... GPS chipsets and GSM900/1800MHz module; Internal antennas; Compact size; Track by SMS or GPRS; Track by interval or on demand; SOS ... non-condensingGSM AntennaInteriorGPS AntennaInteriorLED LightPower/GSM/GPSButton1 panic buttonFlash Memory4MMotion SensorBuild- ...