Ключевые слова: appliance, application, audio, background, black, black man, device, digital, earphones, electronic, hands, headphones, hobby, holding, lifestyle, listening, melody, mobile, mobile phone, modern, music, musician, noise, object, online, park, people, person, phone, playing, portable, portable information device, radio, small, smart, smart phone, smartphone, song, sounds, space, speaker, stereo, technology, track, unrecognizable, using phone, volume, watch, wearable, wireless technology,