Pesawat penerima radio, televisi, tape recorder, video, mesin bicara, gramaphone, amplifier, loudspeaker, microphone, headphone, wireless, kaca mata, teropong, teleskop, pesawat komunikasi, telephone, walky talky, antena penerima/penyiar, booster, radar, receiver parabola, komputer, kabel listrik, pesawat DVD/VCD, laser disk, piringan hitam dan compact disk (audio, video)