The amplifier increases the strength of the digital signal. Hearing aids work by amplifying sound through a three-part system: The microphone receives sound and converts it into a digital signal. About this item EASY USE: Banglijian is a professional hearing aids manufacturer and seller, which have produced a variety of PSAPs. We don't know when or if this item will be back in stock. 3.6 920 ratings | 102 answered questions Currently unavailable.Order within 3 hrs 43 mins Select delivery location In Stock Qty: 1 Buy Now Payment Secure transaction Ships from Amazon Sold by Neosonic US Returns Eligible for Return, Refund or Replacement within 30 days of receipt Support Free Amazon product support included See more Payment Secure transaction $13900 FREE Returns FREE delivery Monday, July 10.Starkey The core components of a hearing aid: microphone, amplifier, receiver, and battery. At its core, every hearing aid works the same way: a microphone captures sound, an amplifier makes the sound louder, and a receiver ( similar to a speaker) outputs the amplified sound into the wearer’s ear.
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