7.0" color video door phone, 7.0" video door phone villa kit 7.0" color video door phone, 7.0" video door phone villa kit, 7.0" video handfree monitorNSK7489CX monitor FunctionCalling,Talk, ... 400mAMax. wiring distance80m/262feet(22AWG,4*0.5mm/2,4*0.75mm/2,Rvv4 cable)Wiring4wiresTalk time45~90secRelative humidity45%~95%Ambient ... modeFinal products,SKD/CKD, OEM/ODM available 7.0" color video door phone