Audio equalizer apparatus; Audio interfaces; Blank USB flash drives; Blank video tapes; Cabinets for loudspeakers; Camcorders; Loudspeakers; Microphones; Transmitters and receivers for audio and video signals for transmission over twisted pair cables; Video baby monitors; Video monitors; Video recorders; Converters for electric plugs; Digital photo frames; Horns for loudspeakers; Receivers for telephone, audio, video; Television cameras; Transmitters of electronic signals