Earphones, headphones, microphones, audio speakers, amplifiers; high fidelity instruments, namely, power amplifiers, loudspeakers, loudspeaker enclosures in the nature of cabinets and replacement structural parts thereof; walkie-talkies, electronic audio mixers, electronic stereo tuners, television and audio-visual receivers, compact disc players, stereo equalizers, audio cassette decks and audio cassette decks for automobiles, and video cassette decks