Network Video Recorder (NVR) 1.2.4ch D1/CIF/QCIF IP camera 2. ... ,FTP,DNS,DDNS,NTP,UPNP,EMAIL 3.Support 1 HDD Network Video Recorder (NVR) Features: 1.4ch D1/CIF/QCIF IP camera 2 ... ,alarm,e-mail,snapshot & FTPAudioAudio CompressionG711ABidrectional TalkSupportRecord & PlaybackRecording ModeManual>Alarm>Video Detection>ContinuousLocal Playback6chSearch ModeTime/Date,Alarm,Motion Detection & exact search ...