Ключевые слова: abstract, background, cable, closeup, communication, computer, connect, connection, electric, electrical, electronics, entertainment, equipment, fiber, guitar, headphones, idea, industry, information, interconnect, internet, jack, line, media, metal, microphone, music, musical, network, object, optics, plug, radio, recording, sign, singing, sound, speaker, stereo, stream, studio, technology, transparency, white, wire,