As many as 300 million people around the world need hearing aids. The vast majority of the 7 million people who get them annually are in the U.S. and Europe.
One big reason is cost. On average, a set of hearing aids rings up a tab of about $4,000. Most insurance policies don’t cover them.
A company called Sound World Solutions is trying to do something about the limited reach of hearing aids by creating a high-quality hearing device that costs less than a tenth the normal price.
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