... TalkSupportRecord &PlaybackRecording ModeManual>Alarm>Video Detection>ContinuousPlayback8 channel playback simultaneously,Pause,stop,rewind,fast play,slow ... 30KΩAudio Output1 channel ,BNC, 200-3000mV,5KΩAlarm Input8 channel,programmable,ground,manual open/closed,Trigger ... recording,PTZ movement,tour,alarm,e-mail & FTPRelay Output1 channel ...