... gps camera tracker GK3537 GSM 850/900/1800/1900 Quad-band Support GPS+LBS positioning f Real time sports cell phone ... hoursLocation accuracy: about 300m(LBS), 5-10m(GPS)Antenna: Built-in quad band GSM antenna, GPS high gain AntennaSide key: Volume key(+,-), key ... ), torch(ON/OFF), FM(ON/OFF)FM function: Built-in antenna, support hand freeDimensions: 115.0(L)x51.0(W)x16 ...