1920 x 1080 pixels Channels quantity: 4 channels USB connectivity Wi-Fi Ethernet LAN Black Mobile DVR / Car DVR (with 3G, 4G, GPS, Wi-Fi) for vehicle real time monitoring, applied with CarCameras used for vehicle monitoring in bus, taxi, school bus, truck, police car, tour bus, tanker truck,escort car, etc. Operated with Client Software BMMS (Bolide Mobile Management Software) torealize fleet management online, and achieve a full range of car monitoring functions such as real mevideo & audio monitoring, GPS, car tracking, GEO-Fence, voice intercom, car temperature, alarmscustomized, driving route record, PTZ control, fuel volume detection, video search and download,generating reports, etc. Performance Product colour Black Channels quantity 4 channels USB connectivity Yes Operating system installed Linux Languages support English Bit rate 4096 Kbit/s Backup function Yes Maximum video resolution 1920 x 1080 pixels Ports & interfaces RS-485 ports 1 RS-232 ports 2 Network Ethernet LAN data