Hearing Aid Common in Europe Turns Up Volume in US

More than 10 percent of Americans have some form of hearing loss.
Even with a hearing aid, deciphering sounds in places like airports,
theaters and places of worship can be tough. However, a not-so-new technology, commonly used in Europe, could help change that. Read more about these T-coils and hearing loops that are beginning to spread better hearing quality for those with hearing aids or cochlear implants globally.

Link: http://www.voanews.com/english/news/usa/Hearing-Aids-Common-in-Europe-Turn-Up-Volume-in-US-135877258.html