Hearing Aids

Hearing Aids: EHDI

For more details about hearing aids including how to get them, how they work, and tips for wearing them, please refer to the Early Hearing Detection and Intervention (EHDI) program at the Georgia Department of Public Health.

What is a hearing aid?

  • A hearing aid is a small electronic device that your child wears behind her ear(s). It makes some sounds louder.
  • A hearing aid has three basic parts:
    • Microphone
    • Amplifier
    • Speaker
  • The hearing aid receives sound through a microphone, which converts the sound waves to electrical signals and sends them to an amplifier. The amplifier increases the power of the signals and then sends them to the ear through a speaker.
  • Hearing aids are secured to your child’s ears with earmolds.
baby in a clinical office having hearing aids fitted

What are earmolds?

  • An earmold is a small piece of soft plastic that is custom made for your child’s ear.
  • Earmolds fit inside your child’s ear canal.
  • The earmold helps hold the hearing aid in place.
  • Because young children grow very fast, earmolds will need to be replaced as your child grows. Replacement will occur more often during early infancy.
  • Earmolds will last longer for older children.

Source: EHDI