... Yards, Play Areas). Business Security (Monitor: Store Fronts, Perimeters, Cash Register, Warehouses, Employees, Customers, Night time when closed). Yard Security ... so much more).Key Features:Video Compression: MPEG-4 Visual Signal Input: 4 Channel (BNC) Audio input: 1 Channels Alarm output ... Package Contents:4CH DVR Card * 1Software CD * 1BNC Connecter * 4 Sell 4 Channel Video Capture DVR Card X09