... Degree of distortion:5%. 3.Can connect to wireless detector FBM8 B/W Multi-user Intercom ... Intercom System, Digital Intercom System, Home Intercom System, Home Video Intercom, Video Door Intercom, ... Intercom for Apartment and Building, Digital Security Intercom, Video Intercom Door Phone. video ... output:≥5mW. 5.Degree of distortion:≤5%.6.Can connect to wireless detectors.7.External dimension ...