Segala macam jenis antena, segala macam tipe antena, antena ì-antena, antena CB, antena mobil, antena tv, antena bracket, ìantena magnetbase, round rotator (alat untuk dipakai pada ante- ìna), antena outdoor/luar, antena indoor/dalam, alat penguat ìantena (booster), parabola, radar, pesawat penerima radio, tele ìvisi, tape recorder, video, mesin bicara, gramaphone, rewinder, ìamplifier, loudspeaker, microphone, megaphone, headphone, wire- ìless, vcd, optik, kaca mata, lensa-lensa, mikroskop, teropong, ìteleskop, pesawat komunikasi, telephone, airphone, walky talky, ìhandy talky, pesawat telex, pita-pita magnetik, pita cassette, ìpita video disk recorder, laser disk, piringan hitam, compact ìdisk (audio, video), accu, baterai, bel listrik, kabel telepon, ìtransformator, travo, ballast, step up, step down, mesin faksi- ìmile, komputer, mesin hitung, kalkulator, kas register, printer ìpesawat-pesawat ukur, speedometer, ampere meter,meteran listrik ìvolta meter, modem-modem, monitor (program komputer), CPU, stop ìkontak, sakelar, switch-switch, fiting-fiting, kombinasi fiting ìstecter, sonar, seterika listrik, mesin fotocopy, disket, pesa- ìwat-pesawat pemadam api, alat solder listrik