Microphones, parts and accessories for microphones; vibration sensors; sensors [measurement apparatus], other than for medical use; loudspeakers; semi-conductor devices; semi-conductors; sound collector; electroacoustic transducers; sound amplifiers; amplifiers; amplifiers for microphones; headsets; microphone stands and parts thereof; extension cords; electric plugs; plug adapters; windscreen for microphones; booms for microphones; parts and accessories for microphones; telephone apparatus and receivers, parts and accessories for telephone apparatus and receivers; headphones, parts and accessories for headphones; earphones, parts and accessories for earphones; electronic power supplies, parts and accessories for electronic power supplies; telecommunication machines and apparatus; computers and their peripherals; computer programs; semi-conductor elements; diodes; computer memory devices; computer hardware; juke boxes for computers; disk drives for computers; computer software for controlling the operation of audio and video devices; central processing units [processors]; data processing apparatus; mouse [computer peripheral]; image scanners; hard disk drives; printers for use with computers; computer software; computer software for controlling telecommunication machines and apparatus; computer software for controlling electronic machines and apparatus; computer software for wireless network communications