... sports cell phone tracker gps camera tracker GK3537 GSM 850/900/1800/1900 Quad-band Support GPS+LBS positioning f Real time ... ;Platform service supports to check accurate locations2012 new cell phonecell phones gsm,china cell phonesGSM: 850/ 900/ 1800/ 1900MHzLCD: 1.7 ... accuracy: about 300m(LBS), 5-10m(GPS)Antenna: Built-in quad band GSM antenna, GPS high gain AntennaSide key: Volume key(+,-), key lock ...