Visit Amazon sites : br GW 16 CH HD-CVI DVR Surveillance System with 16 x 720p Megapixel Dome Indooroutdoor Securitybr br 16 Channel 720p HDCVI DVR with Pre-installed 4TB Hard Drive and Pre-made RG59 Combo cables br 16 High Definition Cameras with 720p 1280H720V Resolution and 49 IR Night Vision br Support IE browser and mobile surveillance by phones with Andriod Balckberry WinCE Symbian and iPhone HDMI VGA br 1080P Preview720P Realtime Recording and HDMI Port for High Resolution Viewing options br 1 Year Warranty and Free Life Time Tech Support From USA