... channel, BNC8 channel, BNC16 channel, BNCStandard1080P(25/30) / 720P(25/30,50/60)AudioInput4 channel, BNC8 channel, BNC16 channel, BNCOutput1 channel, BNCTwo-way Talk1 channel Input, 1 channel ... Output, BNCDisplayInterface1 HDMI, 1 VGA, 1 TV, BNCResolution1920×1080, ...