Ключевые слова: accessory, adult, audio, behind, black, bud, business, closeup, conference, during, ear, earphone, equipment, event, head, headphone, headphones, headset, hear, horizontal, language, listen, man, media, microphone, object, people, person, plug, presentation, professional, simultaneous, single, sound, speaker, technology, translation, translator, unrecognizable, using, wearing,