... 3.Double SD Cards 4. H.264 compression format 3G Mobile DVRIntroduction1,Support 4CH video,CIF,HD1,D1 resolution up ... proof and heat proof.2,It shows vehicle speed, braking signal, time, date, license plate number and other data in ... inputAudio output1CH audio outputCable networkRJ45,1/100M adaptiveWireless networkGPS, 3G real-time transmission videoSupporting softwarePC playback, playback of video ...