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Hearing Aid Advancements: Battery-Free Devices, Artificial Intelligence

New tech may help some of the 48 million Americans with hearing loss

Are OTC Devices Better?

ALAMY

En español | About 1 in 5 Americans live with hearing loss, according to the Hearing Loss Association of America.

That could explain the heavy traffic at some test-your-hearing stations set up at CES, the huge (and hugely noisy) global tech trade show in Las Vegas, and why new hearing aid technologies have been capturing attention.

Hearing aid manufacturer Widex, for example, was turning heads with a battery-free model powered by a miniature fuel cell. Provided the Food and Drug Administration gives the green light, it is expected out this summer. 

“Most hearing aids today use batteries or battery chargers,” says Jeff Geigel, president of Widex USA, of Hauppauge, N.Y. “Our new hearing aid will require neither.”

The fuel cell reenergizes in 20 seconds, versus three to six hours to fully charge rechargeable hearing aid batteries, according to company officials. 

Images of two hearing aids

Widex, Oticon

Hearing aids are changing; some (left) don't use batteries, and others (right) use artificial intelligence to automatically adjust the device.

Another firm, Oticon, has a new hearing aid add-on feature called Kaizn, which uses artificial intelligence to automate settings based on the user's preferences and past activities. Officials compared the technology to that used by Spotify to suggest new songs for listeners based on past choices. 

And Cochlear, the Australia-based manufacturer of processors for cochlear implants, is highlighting technology called forward focus to help those who have implants focus on the person they are speaking to and block out other sound around them.  

Audiologist Jennifer Wright, senior director of product management at Widex USA, says doing away with the hearing aid batteries will help adults with dexterity issues who struggled with them because of their tiny size. 

Historically, users of hearing aids have confronted irritants including whistling and squealing, or what the industry calls feedback, and volume control. Technical refinements are ongoing, Wright said, as are cosmetic changes that can make hearing aids harder to spot or, conversely, cooler to wear.

“We do have fun colors,” she said. “We have pinks and blues and greens that [wearers] can choose from.”

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