Apparatus and instruments for conducting, switching, transforming accumulating, regulating or controlling the distribution or use of electric current; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; audio and video receivers; digital media, namely, pre-recorded DVDs, downloadable audio and video recordings, DVDs, and high definition digital discs featuring sound and video recordings; recorded and downloadable computer software for use in recording, amplifying, reproducing and transmitting sounds and video; blank digital or analog recording and storage media; electric wires and cables; phonograph records; downloadable music files; downloadable image files; photographic machines and apparatus; cinematographic machines and apparatus; public address systems and instruments; public address systems; remote controllers for public address installations; microphones; parts and accessories for microphone, namely, microphone stands, microphone cables, microphone head parts, brackets for microphone; conference microphones; apparatus for transmitting and receiving audio signal for conference use; public address systems for use in emergency broadcasting; antennas; wireless receivers; wireless transmitters; radio transmitters and receivers; battery chargers; amplifiers; audio signal processors; audio apparatus, namely, equalizers; audio mixers; digital audio players; digital music players; CD players; DVD players; record players; optical disc players; audio cassette players; portable media players; apparatus and instruments for transmitting and receiving audio signal; controllers for use in public address systems and instruments; audio interface; audio signal controllers; audio signal converters; video signal interfaces; digital audio interface apparatus; digital-to-analog converters for audio or video signal; electroacoustic transducers; attenuators; sound attenuators for public address systems and instruments; loudspeakers; parts and accessories for loudspeakers, namely, loudspeaker cabinets, speaker drivers, enclosures, audio diaphragms and horns, acoustic diaphragms for loudspeakers, horns for loudspeakers, drivers for loudspeakers; megaphones; apparatus for transmitting and receiving audio and video signals for network communications; conference systems comprising microphones, speakers, controllers, and telecommunication apparatus; apparatus and instruments for switching video displays; converters for intercommunication apparatus; terminals for intercommunication apparatus; video signal processors; remote controllers for video apparatus; surveillance cameras; controllers for video surveillance systems; mounting brackets for surveillance cameras; speaker mounting brackets; mounting brackets for audio apparatus; mounting racks for speakers

Repair or maintenance of electronic machines and apparatus; repair or maintenance of telecommunication machines and apparatus; repair or maintenance of power distribution or control machines and apparatus

Providing information in the field of education; providing information in the field of entertainment; rental of sound recordings; providing online non-downloadable electronic publications in the nature of catalogs in the field of audio or video equipment information and technical information thereof; organization, arranging and conducting of movies, shows, plays or musical performances; providing information on organization, arranging or conducting of movies, shows, plays or musical performances provided through a telecommunication line; production of videotape film in the field of education, culture, entertainment or sports, not for movies or television programs and not for advertising or publicity; rental of records or sound-recorded magnetic tapes; rental of audio frequency devices and apparatus; rental of speakers or microphones; acoustics instruction; rental of parts and accessories for audio-frequency devices and apparatus; rental of parts and accessories for video frequency devices and apparatus; rental of cameras; rental of video frequency devices and apparatus

Design and development of computer hardware and software; designing of machines, apparatus, instruments, including their parts or systems composed of such machines, apparatus and instruments; design of computer programs; providing online non-downloadable computer programs for searching, playing and recording messages, images, audio and video data; providing online non-downloadable computer programs for remote operation of surveillance systems; rental of server storage space; rental of web servers; rental of computers; providing online temporary use of non-downloadable computer software for language translation; design and development of electronic language translation dictionaries and databases; design, creation or maintenance of computer software for electronic language translation dictionaries and databases; server hosting; rental of application software; rental of computer software; rental of computer programs