"Getting Hard of Hearing people in the Loop"
People with hearing loss can dream of a future when hearing aids might also serve as wireless loudspeakers, delivering clear, customized sound from inside their ears. They can dream of communities where worship places, auditoriums, business windows, and home TV rooms all broadcast their sound through these in-the-ear loudspeakers. Thanks to the refinement of "induction loop" systems--which magnetically transmit sound to hearing aids and cochlear implants with telecoils (T-coils)--that future can be now!
For 2-minute animated explanations of hearing loops, see here and here.
Evidence about how people with hearing loss respond.
For instructions for installing a home TV room loop, see (PDF) or video.