Hearing aids are volume-amplifying devices and headphones are sound-producing devices. Relying on headphones to produce sound is one of the common means by which hearing aids transmit sound to people with ear disease.
Hearing aids are small amplifiers that amplify the sound that ear disease patients can't hear, and then use the residual hearing of the hearing impaired, so that the sound can be sent to the auditory center of the brain, and feel the sound.
The headset is a conversion unit that receives electrical signals and converts them into sound waves using a speaker close to the ear.
Hearing aids are essentially loudspeakers, but they are very different from loudspeakers and media players. They are designed to maximize the quality of sound by amplifying the sound and reproducing it. Hearing aids, on the other hand, are designed to selectively enhance the sound of different frequencies in response to the hearing deficiencies of people with ear disorders. A person with normal hearing will hear "weird" sounds through a hearing aid.
Hearing aids and amplifiers, as well as media players, are available with integrated headphones, and are even close in appearance. The only way to tell them apart is to check their function.
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