Masking Zone setup · Network support Talkback & Relay operation · Connectivity support iphone, ipad, Windows mobile · Graphic OSD and operation indication, easy using · Totally control with front panel, IR remote, mouse and keyboard (15-AU50x) · H. 264 compression technology · VGA / BNC support multi monitor output · Motion Detection with E-mail snapshot · Full network operation and Dual Stream supported · D1 recording on all channel · Support real time recording · Audio recording / playback and remote talk back · RS422/485 support PTZ control and keyboard (15-AU50x) · Alarm terminal for alarm accessory connection · Center Monitoring System supported · USB support mouse control and backup · External HDD & USB Memory Stick backup · Single Operation System, user interface making them easy to use · PTZ support for move to preset on event