Loudspeakers; loudspeaker systems; loudspeaker systems; loudspeaker units; cabinets for loudspeakers; smart speakers; wireless speakers; portable speakers; wireless audio speakers; speaker docks; loudspeaker systems comprised of loudspeakers and housings for loudspeakers; horns for loudspeakers; signal processors for audio speakers; pairable wireless speakers; loudspeakers with built in amplifiers; speakers for portable media players; wearable speakers; electronic audio signal processors for compensating sound distortion in speakers; audio apparatus; audio frequency apparatus; audio transmitter units; audio amplifiers; audio interfaces; audio receivers; audio signal range restorers; audio editing software; audio expanders; audio noise reducers; audio electronic apparatus; digital audio players; computer software for recording sound; vibration dampeners for electronic audio equipment; remote controls for audiovisual equipment; information technology and audiovisual equipment; audio circuits [on printed circuit boards]; electronic audio/video signal distribution systems; parts and fittings for audio apparatus; audio dynamic characteristic modifiers; electronic units for transmitting audio signals; routers for routing audio, video, and digital signals; software to control and improve audio equipment sound quality; switchers for routing audio, video, and digital signals; computer hardware for routing audio, video, and digital signals; apparatus for downloading audio, video and data from the internet; software for processing images, graphics, audio, video and text; audiovisual apparatus; audiovisual apparatus; computer software to enhance the audio-visual capabilities of multimedia applications; computer software to enhance the audio-visual capabilities of multimedia applications; sound processors; amplifiers; audio switching apparatus; audio mixing consoles; audio effects apparatus; audio receivers; sound reproduction apparatus; sound reproduction apparatus; sound transmitting apparatus; audio frequency amplifiers; sound reverberation units; speakers [audio equipment]; electroacoustic emphasisers; integrated audio amplifiers; digital sound processors; audio- and video-receivers; portable sound reproducing apparatus; MPEG audio players; control apparatus for audio signals; sound recording and reproducing apparatus; sound mixers with integrated amplifiers; electrical amplifiers for sound signals; audio dubbing apparatus; digital audio interface apparatus; apparatus for recording, transmission, amplification or reproduction of sound; electric cables for the transmission of sounds and images; wireless communication devices for voice, data, or image transmission; apparatus for recording, transmission or reproduction of sound or images; apparatus for recording, transmission or reproductions of sound or images; apparatus for recording, transmission or reproduction of data, sound or images; apparatus for recording, transmission, data storage or reproduction of sound or images; apparatus for recording, transmission, processing and reproduction of sound, images or data.