Nearly 29 million people could benefit from hearing aids, but only about 20 percent of people who could benefit from a hearing aid actually use one.

Late last year, Bose developed the first over-the-counter hearing aid, which was the first since President Donald Trump signed a law allowing hearing aids to be sold over-the-counter.

"If they can get a person to try something sooner, or just to try something in general and spur them to go forward with something even more customized and better, then I think that would be helpful for people in the long run," said Dr. Kristen Lewis, an audiologist at Saint Luke's Hospital Midwest Ear Institute.

FOX4 talked to Dr. Lewis about who could benefit from using these over-the-counter hearing aids and what people need to know before buying one.

Watch the full story below.

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