MP3 player, MP4 player, MPEG4 player, VCD Player, DVD player, speaker aktif, kaset (cassette), pita cassette, pita video disk recorder, laser disk, piringan hitam, compact disk (audio, video), pesawat TV, EVD player, COY, portable DVD, LCD TV, LCD monitor, plasma TV, CRT monitor, portable media player, komputer, flash disk, flash memory, digital camera, digital video camera, digital sUlveilance system, digital video recorder, DVD recorder, EVD recorder, car DVP player, car roof mount DVD player, car roof mount monitor, active speaker, speaker, stabilizer, stavol, FM Transmitter, FM receiver, headphone, earphone, FM wireless headphone, wireless COY, wireless active speaker, bluetooth headset, bluetooth headphone, bluetooth speaker, gramaphone, pickup, rewinder, amplifier, microphone, megaphone, optik, kaca mata, lensa-Iensa, mikroskop, teropong, teleskop, pesawat komunikasi, telephone, walky talky, handy talky, pesawat telex, pita-pita magnetik, antena, booster, radar, parabola, accu, baterai, batu baterai, bel listrik, kabel telepon, transformator, travo, ballast, stepup, stepdown, mesin faksimili, mesin hitung, kalkulator, kas register, mesin teleks, printer, pesawat-pesawat ukur, speedometer, ampere meter, meteran listrik, volta meter, modem-modem, monitor (program komputer), cpu, stop kontak, sakelar, switch-switch, fiting-fiting, kombinasi fiting, stecker, sonar, seterika listrik, mesin fotocopy, disket, pesawat-pesawat pemadam api, alat solder listrik