Cabinets for loudspeakers; Loudspeakers; Record players; Transmitters and receivers for audio and video signals for transmission over twisted pair cables; Megaphones; Microphones; Horns for loudspeakers; Acoustic couplers; Loudspeakers, headphones, microphones and CD players; Portable media players; Radios; Loudspeakers with built in amplifiers; Choking coils for use in electrical apparatus; Vacuum tubes for radios; Transformers; Converters for electric plugs; Electric connections and connect...