Digital audio players and/or recorders which use integrated circuits as recording media; digital video disk players and/or recorders which use integrated circuits as recording media; audio tape players and/or recorders; audio disc players and/or recorders; radio tuners; audio receivers; audio amplifiers; audio speakers; headphones; earphones; microphones; television sets; liquid crystal displays; liquid crystal display projectors; television tubes; cathode ray tubes; video tape players and/or...