Kaset (cassette), pita cassette, pita video disk recorder, laser disk, piringan hitam, compact disk (audio, video), pesawat TV, DVD player, EVD player, VCD player, CCTV, portable DVD, LCD TV, LCD monitor, plasma TV, CRT monitor, MP3 player, MPEG4 player, portable media player, komputer, flash disk, flash memory, digital camera, digital video camera, digital surveilance system, digital video recorder, DVD recorder, EVD recorder, car DVD 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 CCTV, 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