Ключевые слова: audiogram, audiometry, auditory, canal, canceling, cochlea, construction, damage, defect, diagnosis, ear, harm, harm from headphones prohibited sign, headphone, headphones, hear, hearing, human, illustration, inner, instrument, internal, listen, loud, medicine, membrane, middle ear, model, nerve, otitis, prohibited, protection, sign, sound, system, tinnitus, tympanic, vacuum, volume, warning sign,