+A **hearing aid** is a small [electronic device](/wiki/electronic_device) worn in or behind the ear, designed to amplify [sound](/wiki/sound). It helps individuals with [hearing loss](/wiki/hearing_loss) to hear more clearly, enhancing their ability to communicate and perceive their environment.
+## See also
+- [Cochlear Implant](/wiki/cochlear_implant)
+- [Audiology](/wiki/audiology)
+- [Sound Amplifier](/wiki/sound_amplifier)
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