... phone is.4-inch CRT. 1.Power output:5mW. 2.Degree of distortion:5%. 3.Can connect to wireless detector FBM8 B/W Multi ... detectors Similar products:B/W Intercom System, B/W Video Intercom System, B/W Multi-user Intercom, B/W Video Door Intercom, Door Intercom, Intercom, Video Intercom System, Video Door Entry System ...