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