How do hearing aids work?
Today’s digital hearing aids are miniature electronic devices that sit in or on the ear, and selectively amplify and process sounds. All hearing aids contain one or more microphones to pick up sound, an amplifier that amplifies and processes sound, a receiver or speaker that sends the signal from the amplifier into your ear, and a battery, or power source. All these components are packaged into various styles to fit people’s cosmetic needs and power requirements.
