Health
This $1 device could treat millions with hearing loss – Science Magazine
LoCHAid can be assembled in 30 minutes with cheap parts

Saad Bhamla models his do-it-yourself hearing aid, built with a soldering iron and cheap supplies.
Craig Bromley
By Christa Lesté-LasserreSep. 23, 2020 , 2:00 PM
As an undergraduate in Mumbai, India, Saad Bhamla wanted to do something nice for his maternal grandparents: Buy them a pair of hearing aids. But the prices were shockingly highand far beyond his means. Now, 15 years later, the bioengineer has invented a device to help grandparents across the globe: a do-it-yourself hearing aid made…
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