Ключевые слова: adult, audio, audio equipment, background, blue, boy, casual, caucasian, closeup, concentration, crop, ear, enjoy, equipment, fun, generic, guy, hair, head, headphone, headphones, household objects, isolated, learning, leisure, listen, listening, listening headphones, macro, male, man, mp3, music, nobody, one, people, person, portrait, professional, professional equipment, recording, serenity, song, sound, stereo, studio, technology, unrecognizable, white, youth,