Electrical apparatus for line telephony or line telegraphy, namely, telephone sets; videophones; facsimile machines; cellular phones; personal handyphones; 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; mini audio systems comprising amplifiers, loudspeakers and optical disk players; audio-video amplifiers; recording players; recorders/players of optical discs; recorders/players of magnetic tapes; hard disc recorders; video cameras; video projectors; video screens; audio mixing consoles; audio signal processors; audio-video receivers; graphic equalizers; electronic sound effectors; amplifiers for musical instruments; effectors for musical instruments; samplers; electronic tone generators; electronic circuits for tone generators; recorders and players of MIDI data; electronic music sequencers; MIDI interfaces; karaoke machines; discs pre-recorded with music data in MIDI file format; pre-recorded discs featuring music or cinematographic films; unrecorded media, namely, blank audiotapes and optical discs for sound recording; unrecorded media, namely, blank videotapes and optical discs for video recording; data processing equipment and computers; personal computers and peripheral equipment; electronic circuits for generating, effecting, recording and/or reproducing sound; electronic circuits for sequencing music; electronic circuits for mixing sound or music; handheld PCs; computer software for generating, reproducing, effecting and/or recording sound; computer software for playing music; computer software for reproducing images; computer software for compressing and expanding sound and video data; computer software for encoding and/or reproducing sound or images; computer software for authoring/producing digital contents; personal digital assistants (PDA); CD-R/RW drives; hard disk drives; downloadable electronic publications, namely, books, magazines, manuals, catalogues and newsletters in the field of music; downloadable electronic publications namely, books, magazines, manuals, catalogues and newsletters in the field of large scale integration chips; metronomes; electronic music downloadable 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; semiconductor devices; parts for all the aforesaid goods