Televisi, radio, radio cassette, amplifier, power ampli, loudspeaker box, VCD, pesawat penerima radio, tape recorder, video, mesin bicara, gramophone, pickup, rewinder, amplifier, microphone, megaphone, headphone, wireless, vcd, optiC, kaca mata, lensa-lensa, mikroskop, teropong, pesawat komunikasi, telephone, airphone, walky talky, handy talky, pesawat telex, pita-pita magnetic, pita cassette, pita video disk, recorderLaser disk, piringan hitam, compact disk (audio, video), antenna, booster, radar, parabolaAccu, baterai, batu baterai, bel listrik, kabel telepon, transformator, travo, ballast, step up, step down, mesin faksimili, computer, mesin hitung, kalkulator, kas register, mesin teleks, printer, pesawat-pesawat ukur, speedometer, ampere meter, meteran listrik, volta meter, modem­modem, monitor (program computer), cpu, stop kontak, sakelar, switch-switch, fiting-fiting, kombinasi fiting, stecker, sonar, setrika listrik, mesin fotocopy, disket, pesawat-pesawat pemadam api, alat solder listrik