EarthYP Edge Conference in Maui, Hawaii

1715 Bay Ave Ste 2
Ocean Park, WA 98640
(360) 665-5881

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Hearing aid
From Wikipedia, the free encyclopedia
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations. Small audio amplifiers such as PSAPs or other plain sound reinforcing systems cannot be sold as "hearing aids". Early devices, such as ear trumpets or ear horns, were passive amplification cones designed to gather sound energy and direct it into the ear canal. Modern devices are computerised electroacoustic systems that transform environmental sound to make it audible, according to audiometrical and cognitive rules.
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EarthYP Edge Conference in Maui, Hawaii