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Looks like Bose is already there: https://www.soundly.com/product/lexie-b2-powered-by-bose

"While Bose is no longer manufacturing and selling SoundControl™ Hearing Aids, we are continuing to offer our complimentary technical support for those who have already purchased SoundControl™ Hearing Aids."

https://www.bose.com/en_us/products/headphones/earbuds/sound...

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