... recording, and pre-recording.Ethernet interface is provided for realizing remote monitoring, remote playback, acoustic monitoring ... searching, channel searching, information searchingStorageAndBackupHard disk capability for each channelAudio: 28.8Mbytes/hourVideo:80~250Mbytes/hourRecording ... installation H.264 Standalone DVR for CCTV surveillance system,support 3G mobile,4 Channel D1 realtime Recording