This was on CBS News Sunday Morning program. I only caught the end of it and have not watched it yet. I know the end of it was interesting.https://www.google.com/search?q=cbs+morning+news+hearing+aids&oq=cbs+news+hearing+aid&aqs=chrome.2.0j69i57j0l2.16795j0j7&sourceid=chrome&ie=UTF-8