GW Security VDW16CH12C1361IP 16 Channel 1080P Network NVR HD IP Security Camera System with 12 x 960P Outdoor 2.8-12 mm Varifocal Zoom Cameras and 4 TB HDD Full 1080P 16 Channel NVR with (12) 960P 1.3 MP 2.8~12mm Varifocal Manual Zoom POE IP Cameras Support web and mobile surveillance by phones with Android, Blackberry and iPhone ,HDMI & VGA Power over Ethernet setup is simple with a single network cable, built-P2P service and support ONVIF Built in 2.8~12mm Manual Zoom Varifocal Lens which allow you to adjust the angle of View Pre-installed 4TB Hard Drive with 1 Year Warranty and Free Life Time Tech Support From U.S.A.