... opertation.6 ch video input(4-channel CCTV video inputs, 2-channel video door phone inputs)4 channel monitor or single on screen ... , network surveillance, recording check,download and so on.· Multi-channel playback mode· Zoom at any selected section on screen Network ... ,User manual,CD,MouseOptional HDD,outdoor station,CCTV camera,6P CCTV cable H.264 Combo 8" LCD CCTV DVR kits with video door phone