Telephone sets; videophones; facsimile machines; cellular phones; mobile telephones; apparatus and instruments for processing, reproducing, transmitting and recording sound or images, namely, radio-broadcasting receivers, television sets, video monitors, microphones, silicon microphones, loudspeakers, woofers, sub-woofers, headphones, earphones, audio/video amplifiers, recording players; recorders/players of optical discs; recorders/players of magnetic tapes; hard disc recorders; cameras; vid...