... 3.Alarm function 4.Talkback function 16CH High Definition Embedded Hard Disk Video Recorder Features:H.264 Compression D1 real time 2ch ... Full real time, total resource: 400 frames16 CH video input, 2 CH BNC video output, 1 CH VGA video output16 CH audio input, 1 ... 1, 4, 8, 16 channels playback at the same timeFixed video code stream/frame rate can adjustedPan\tiltlens control, alarm function ...