Product Description: With 1 camera20 color monitor with built-in 4 channel real time quad multiplexerBuilt-in 1280 hour time lapse VCR with 40 hour Real Time capabilityMultiple view options of quad sequential picture-in-picture full screen zoom and freezeTwo way audioDual motion sensors-pixel and camera based activityComplete system includes: 20 color monitor with VCR up to 4 color CCD PIR motion sensor cameras with 3.6mm lens wall mounting hardware for camera and 65 power/video cable for each cameraMultiplexer feature allows for quad or full screen viewing of recorder videoShipping package dimensions: 21.2x22.2x25.6 (len x wid x dep)