... Buzzer & Screen tipsVideo DetectionMotion Detection, MD Zones: 396(22×18), Video Loss & Camera BlankAlarm Input3 channelRelay Output1 channelPlayback & BackupPlayback Channel1/42001 ... FunctionPlay, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup ... (without HDD) Mini Vertical Style Dahua NVR with POE Function