Acoustic conduits; Acoustic couplers; Acoustic membranes; Acoustic separation units; Alarm installations and alarms; Baby monitors; Cabinets for loudspeakers; Camcorders; Coaxial cables; Data processing apparatus; Digital photo frames; Electric door bells; Portable media players; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Smoke detectors; Switchboards; Theft alarms; Video recorders; Video screen...