Presentation and demonstration services, in a store, for sale to the public of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; presentation and demonstration services, online via a global computer network, for sale to the public of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; retail store services for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; online retail services via a global computer network, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; organization and planning services, for promotional and commercial purposes, for listening to music and sound and audiovisual projection sessions, in a store, with a view to the sale thereof to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; organization and planning services, for promotional and commercial purposes, for music and sound listening and audiovisual projection sessions, online via a global computer network, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; presentation and demonstration services, via a global computer network and in a virtual reality and augmented reality environment, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; organization and planning services, for promotional and commercial purposes, of music and sound listening and audiovisual presentation sessions, via a global computer network and in a virtual reality and augmented reality environment, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; commercial information and advice with respect to the selection for purchase of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor

Installation, servicing, repair, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; information and advice with respect to the installation, servicing, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor

Technical advice concerning the selection of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; technical evaluations, advice and tests concerning the design (engineers' services) of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios; technical testing of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; technical advisory services with respect to installation, servicing and repair of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; drawing up technical plans unrelated to business dealings for the design of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios