Ключевые слова: adult, audio, caucasian, cellphone, communication, commuter, concert, earphones, guy, head, headphones, indoors, information, lifestyle, listen, listening, looking, loud, male, man, mobile, modern, mp3, music, news, one, people, person, podcast, professional, recording, relaxation, sing, singer, smartphone, smiling, song, studio, style, technology, urban, white, work, young,