Loudspeakers; wireless speakers; loudspeaker cables; racks for loudspeakers; repeaters; headphones; headphone amplifiers; microphones; acoustic meters; measuring devices, electric; sound locating instruments; horns for loudspeakers; converters for electric plugs; audio circuit boards; electrical control circuits; chips containing musical recordings; speech processors; connection cables; electric cords; audiovisual teaching apparatus; instructional and teaching apparatus and instruments; series of musical sound recordings; digital music downloadable from the Internet; prerecorded music videos; pre-recorded DVDs; downloadable digital music; downloadable sound recordings; pre-recorded DVDs featuring music; optical discs featuring music; prerecorded video tapes featuring music; recorded discs bearing sound; musical sound recordings; downloadable music files; musical video recordings; compact discs featuring music; audio recordings; electrical amplifiers; amplifiers; speaker docks; sound and picture recording apparatus; audio- and video-receivers; audio frequency amplifiers; digital audio tape players; adapter cables for headphones; acoustic couplers; surface acoustic wave filters; analogue sound modifiers; loudspeaker stands [adapted for]; audio frequency apparatus; audio apparatus; audio compressors; audio conference apparatus; audio interfaces; audio amplifiers; audio time delay units; digital audio players; digital audio recorders; electroacoustic emphasisers; electroacoustic transducers; audio electronic apparatus; electronic audio crossovers; equalizers [audio apparatus]; audio speakers for home; high fidelity audio apparatus; speaker switches; diaphragms [acoustics]; switchers for routing audio, video, and digital signals; signal processors for audio speakers; surround processors; surround sound systems; sound recording apparatus; audio effects apparatus; audio mixing apparatus; audio processing apparatus; sound reproduction apparatus; audio editing software; audio analyzers; electronic units for transmitting audio signals; software to control and improve audio equipment sound quality; prerecorded CD-roms

Rental of apparatus for the broadcast of audio signals; rental of equipment for broadcasting; rental of wireless communication systems; transmission of sound by electronic means; transmission of sound via interactive multimedia networks; transmission of sound, video and information; audio broadcasting; audiovisual transmission services; cable transmission of sounds, images, signals and data; wireless electronic transmission of voice signals; audiovisual communication services; advisory and consultancy services relating to wireless communications and wireless communications equipment; consulting services in the field of electronic communications; electronic and telecommunication transmission services; secured data, sound and image transmission services; radio communications; electronic network communications; secure transmission of data, sound or images; voice and data transmission services

Data security consultancy; computer network services; software development, programming and implementation; design and development of data processing systems; design and development of systems for data input, output, processing, display and storage; research in the field of data processing technology; research in the field of information technology; engineering consultancy services; engineering services relating to the design of electronic systems; engineering services in the field of communications technology; rental of science and technology equipment; electronic storage of audio files; digitalization of sound and images