... CH video input, 1CH and 1CH VGA BNC video output NTSC/PAL alternativeMotion detection area and detection sensitivity settableContinuous, motion detection, time-course video recording ... 600Ω)Audio compression ADPCM, kbpsPlayback1,4,8,16-ch playback simultaneously Stream typeVideo/ Video AudioHDD SATA2 Interface, 2 HDDs, ... ://www.chinacctvsupplier.com/pid145422/16+ch+standalone+Digital+Video+Recorder.htm