digital video recorder dvr -H.264,4chs video,1ch audio -3G Mobile view -Factory Price Sample OK ... performance embedded microprocessor HI3515Operating SystemEmbedded LINUXSystem ResourcesPentaplex function:live,recording,playback,backup & remote accessUser InterfaceGUI,on-screen menu ... stick/movable HDD/SATA HDD/DVD-RWInterfaceVideo Input4channelVideo Output2 channel TV output BNC,1.0Vp-p,75Ω,1 VGA ...