1.Mini 3G Mobile DVR, 4 channel, GPS, 3G,WIFI 2.H.264 ,VOICE Talking 3 ... the industrial connectors special for mobile dvr.l Built-in GPS, WIFI, G sensor, Gyro sensor optional.2 SD ... input, 4 CVBS, 1.0Vp-p, 75ΩVideo output1CH output, CVBS, 1.0Vp-p, 75Ω,PreviewSupport 1 channel or synchronous ... control, RJ45 10M/100M Ethernet port.GPS and G-Sensor, Gyro-sensorbuilt-in GPS module optional. With G-Sensor to ...