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; video cameras; video projectors; video screens; data processing equipment, namely, data processors and central processing units for processing data; personal computers and computer peripherals; electronic circuits for generating, effecting, recording and/or reproducing sound; electronic circuits for sequencing music; electronic circuits for mixing sound or music; handheld PCs; downloadable electronic music provided from a computer network; downloadable electronic music for signaling an incoming call of cellular phones; downloadable computer games software provided from a computer network; electronic integrated circuits; large scale integration chips; electronic microassemblies; semi-conductor devices