Q-See QS4816-852-1 16 Channel Security Surveillance DVR System with 8 High-Resolution Cameras and 1TB Hard Drive, Black Stream Live Video Directly to a remote MAC or PC, iPhone, iPad, or Android. Receive email alerts upon motion detection. Includes 8 High-Resolution Weatherproof Cameras with 600 TV Lines of Resolution Each camera provides up to 100ft of night vision Comes with a pre-installed 1 TB Hard Drive Remote Internet monitoring (up to 5 users at the same time)