Ключевые слова: 20, adult, alone, better, cancel, clog, clogged, closeup, cork, decibel, ear, earlobe, earplugs, ears, european, female, girl, hand, hear, hearing, hold, human, hygiene, insert, interior, into, loud, neighbors, noise, noise cancellation, not, person, plug, plugs, portrait, prevention, protection, reduce, security, sem, shot, sleep, smile, sound, student, studio, study, white, woman, years,