... Enable strong multi-way synchronization with max 4/8/16 channels playback, realize the zero-delay between playback channelsSystemModel5004DA-EH5008DA ... &PlaybackRecording ModeManual>Alarm>Video Detection>ContinuousPlaybackMax 4/8 channels playback simultaneously,Pause,stop,rewind,fast play,slow play ... /1ch Video: CIF: 4-5G/24hours/1chVideo:D1:16-20G/24hours/1ch Video:960H:9-42G/24hours/1chHDD ...