“When the old Ma Bell telephones were in existence, they emitted lots of magnetic signals,” she explained. The technology is not new: Telecoils were originally embedded in hearing aids to pick up electromagnetic signals from landline telephones so that the hearing aid user could hear better on the phone, Sterkens said. They can receive electromagnetic signals from a variety of sources and are generally activated easily with the touch of a button. Telecoils, also known as t-coils, are small copper wires coiled discreetly inside hearing aids (see image here). What is a hearing aid telecoil? This Opn miniRITE T hearing aid has a In fact, telecoils are so useful that Sterkens considers them one of the four essentialy hearing aid must-haves that all hearing aids should come with. “But telecoils and hearing loops give people with hearing aids better hearing, even sometimes better than those with normal hearing.” “Hearing aid microphones only work for a relatively short distance,” Juliëtte Sterkens, hearing loop advocate for the Hearing Loss Association of America (HLAA), said.
These small copper coils have come standard in most hearing aid devices for nearly 50 years and, when used in tandem with a hearing loop, can dramatically enhance your listening experience in public places by piping sound directly to the hearing device. If you wear hearing aids or are considering making that purchase soon, be sure to ask your hearing care provider about telecoil technology.
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