4 chs video ,1 chs audio 30fps (NTSC) / 25fps (PAL) 704x576,352x288(PAL); 640x480,320x240(NTSC) MPEG 4, XP/Vista IE Web Brow Specification ModelED-1004UVideo Input4 CamsAudio Input4 Ch PC AudioVideo Output1 Ch VGA Video OutputDisplay Rate25 fps (PAL), 30fps (NTSC)Recording Rate25 fps (PAL), 30fps (NTSC)CompressionMPEG4Video Resolution704x576,352x288(PAL);640x480,320x240(NTSC)Recorder MediaHDD, ...