TV, video, audio, radio, VCD player laserdisc, walkman, antena TV / radio, komputer, tape recorder, parabola, amplifier, sound system, interkom, seterika listrik, mesin fotocopy, vacum cleaner, kamera, handphone, bel listrik, mesin faksimili, mesin teleks , alarm, piringan hitam, telephone, mesin hitung, adaptor, trafo, proyektor slide, kabel listrik, karaoke, stabilizer, steker, alat perekam suaru, kaca mata