... H.264 compression Car vehicle DVR with GPS,WIFI,3G function build in. The mainly feature: H.264 compession ... G-Sensor, Gyro-Sensor module; support 3G transmission; WiFi wireless transmission; Support 3G remote fule cut-off and power-off; ... Aluminium materials,heat-proof ,water-proof & dustproof Support 1T HDD and SD card can set to mirror record or error ... .264 real time recording,have GPS,WIFI,3g Function