Televisi (TV), radio, radio cassette, amplifier, power ampli, loudspeaker, speaker box, OVO, LCO, VCO, MP3 player, pesawat penerima radio, tape recorder, video, mesin bicara, gramaphone, pickup, rewinder, amplifier, microphone, megaphone, headphone, wireless, vcd, optik, kaca mata, lensa-Iensa, mikroskop, teropong, teleskop, pesawat komunikasi, telephone, airphone, walky talky, handy talky, pesawat telex, pita-pita magnetik, pita cassette, pita video disk recorder, laser disk, piringan hitam, compact disk (audio, video), antena tv/radio, booster, radar, parabola, accu, batu baterai, bel listrik, kabel telepon, transformator, travo, ballast, step up, step down, mesin faksimili, komputer, mesin hitung, kalkulator, kas register, mesin teleks, printer, pesawat-pesawat ukur, spedometer, ampere meter, meteran listrik, volta meter, modem-modem, monitor (program komputer), cpu, stop kontak, sakelar, switch-switch, fiting-fiting, kom bi nasi fiting, stecker, sonar, seterika listrik, mesin fotocopy, disket, pesawat-pesawat pemadam api, alat solder listrik, alat fotografi, kamera, lensa kotak