GW Security VD1208-401HDSDIX8 8 Channel HD-SDI DVR Security Camera System with 8 x 1.3MP 2.8-12mm Varifocal HDSDI 720P Bullet Cameras 2TB HDD Included High Definition 8 Channel HD-SDI DVR with (8) 720P 1.3MP 2.8~12mm Varifocal Manual Zoom Lens HD-SDI Cameras Support mobile surveillance by phones with Android, Blackberry, WinCE, Symbian, and iPhone ,HDMI & VGA Support IE browser to remote view and 720P high resolution Built in 2.8~12mm Manual Zoom Varifocal Lens which allow you to adjust the angle of View, 42pcs Infrared LED, view up to 120 feet IR long distance Pre-installed 2TB Hard Drive with 1 Year Warranty and Free Life Time Tech Support From U.S.A.