... VGA / TV / Spot simultaneous video output> All channel synchronous realtime playback, GRID interface & smart search> 3D ... Output4 channel8 channel16 channelAudioInput4 channel, BNC8 channel, BNC16 channel, BNCOutput1 channel, BNCTwo-way Talk1 channel Input, 1 channel Output, BNCDisplayInterface1 HDMI, ... (Continuous), MD, Alarm), StopRecord Interval1~120 min (default: 60 min), Pre-record: 1~30 sec, ...