Hearing aid manufacturers tell you whether wearing headphones will affect hearing?
Yes. Different headphones do harm to hearing: The earphone inserts a colloid plug into the ear canal to shorten the distance of sound transmission and make the same sound cause greater tympanic vibration. Because the colloid plug almost completely blockades the external auditory canal, the sound has no origin, almost all of it is accepted by the ear canal, and the damage to hearing is great. Headphones are the second, earplugs are the least harmful to hearing.
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