Alat penerima telepon, peralatan telepon, telepon genggam, alat interkom, amplifier, antenna tv, box loudspeaker, cassette recorder/cassette desk, cassette tape recorder/tape deck, loud- speaker, mikrophone, equalizer, alat pengeras suara, pesawat televisi, radio, power amplifier radio, tuner radio, setrikaan listrik, compact disk, (audio, video), compact disk (hanya membaca memory), compact disk tuner, alat penerima audio dan video, alat perekam suara, laser disk (audio, video), pita video, perekam video