1~4 channel wireless 3G bus DVR 1.H.264 format 2.1~4CH video input 3 ... GPS are available 4.CIF,HD1,D1 resolution 1~4 channel wireless 3G bus DVRIntroduction1,Support 4CH video,CIF,HD1, ... card Mobile DVRBackColor PackagingThis is the image of 3G Mobile DVR video. You can see time, date, vehicle speed and ... Member in Shenzhen Security&protection Industry Association 1~4 channel wireless 3G bus DVR