... video output,1ch VGA video input, 1ch Audio output USB backup,support record,support mouse Pan\tiltlens control, alarm function, talkback function Support multiple network ... total resource: 400 frames16 CH video input, 2 CH BNC video output, 1 CH VGA video output16 CH audio input, 1 ... 4, 8, 16 channels playback at the same timeFixed video code stream/frame rate can adjustedPan\tiltlens control, alarm ...