Electrical power distribution units; electrical power control apparatus; electric sockets, plugs and other electric connections; electrical fuses; plug adaptors; battery chargers; electrical power supplies; electronic devices, namely, noise filters for power line communication or power supply; filters for radio interference suppression; electrical power distribution units for automobiles; electrical power control apparatus for automobiles; lighting control device for facilities for karaoke and lighting control panels; stage and studio lighting control device and lighting control panels; batteries and cells, namely, batteries for vehicles, galvanic batteries, ignition batteries, nickel-cadmium storage batteries, solar batteries, solar cells, dry cells, photovoltaic cells; batteries; batteries for automobiles; electric wires and cables; audio cables; speaker audio cables; video cables; microphone cables; electric lead wires; electric wires and cables for automobiles; apparatus for recording, transmission and reproduction of sound and images; digital audio players; camcorders; equalizers being audio apparatus; electrical signal amplifier for audio and video; signal amplifiers; mounting racks for telecommunications hardware; insulators for installing audio equipment, namely, vibration and shock dampeners for electronic audio equipment; transmitters and receivers for optical radio transmission; telephone headsets; headsets for mobile telephones; headsets for use with computer; virtual reality headsets; wireless headsets for smartphones; communications headsets for use with communication radios, intercom systems, or other communications network transceivers; headphones; parts and accessories for headphones, namely, headphone pads, headphone cushions, headphone extension cords, headphone hangers and headphone stands; earphones and their parts and accessories, namely, earphone cushions, earphone pads, earphone battery cases, earphone extension cords, ear buds, ear tips, ear pieces and ear hooks; cases for earphones; cases for headphones; microphones and their parts and accessories, namely, microphone holders; covers for microphones; microphone protectors being hand-held microphone sleeves; cases for microphones; microphone windscreens; microphone holders and their structural replacement parts; boom poles for microphones; microphone stands; audio speakers and their parts and accessories, namely, audio speaker enclosures and audio speaker horns; carrier bags specially adapted for audio speakers; mounting brackets adapted for audio speakers; stands adapted for audio speakers; radio transmitters and radio receivers; aerials; transmitters and receivers for audio and video signals for transmission over cables; record players and accessories, namely, stroboscopes; disk stabilizers being an audio apparatus for record players; phono equalizers being audio apparatus; headshells for phono cartridges; phonographic record cleaning kits comprised primarily of replacement stylus needles and also including cleaning solution and brushes; needle cartridges for record players; pickups for record players; tone arms for record players; needles for record players; record turntables; recording and playing devices for sound and image carriers; radio transmitters; telecommunication apparatus for conference system, namely, conference phones, automatic switching apparatus and their parts and accessories, namely, telecommunication switches, telecommunication cables; telecommunication machines and apparatus, namely, telephones, video monitors, microphones, computers and audio speakers for conference system; telecommunication controlling equipment, namely, control panels for conference system; voting machines for conference system; telecommunication controlling equipment for translators, namely, electronic controllers for use with language interpretation and translation services systems comprised of computer hardware, computer peripheral devices, telephones and recorded computer software; simultaneous interpretation receivers; loudspeakers and their parts and accessories, namely, loudspeaker cabinets, loudspeaker racks; electroacoustic transducers; signal amplifiers for images and sound; selector switch boxes for audio- and video-receivers; audio and video distribution amplifier; audio mixers; sound signal converters; sound signal transports, namely, apparatus for recording, transmission or reproduction of sound; sound signal transmitters; telecommunication apparatus, namely, telephones, video monitors, microphones, computers and audio speakers for automobiles; vibration dampeners for electronic audio equipment for automobiles; electric and electronic effects units for audiovisual equipment; recorded or downloadable computer software to control and monitor the function of audio equipment; electric converters; electrical terminators; voltage regulators; recorded or downloadable computer software for transmission, reproduction, and recording of sound and videos; telecommunication machines and apparatus, namely, wireless transmitters and receivers and their structural replacement parts and fittings, wired telecommunications transmitters and receivers and their structural replacement parts and fittings and optical wireless communication transmitters and receivers; recorded or downloadable computer software for editing sound and video