Most hearing aids do a decent job of amplifying mid tones but struggle with the highs and lows, resulting in sound that is flat and dull. That makes it hard to follow conversations in a crowd—the so-called cocktail-party effect. Earlens ($6,000 per ear) upends the process, nixing the amplifier entirely and instead using a tiny lens that sits next to the eardrum. A microphone housed in the device’s over-the-ear processor picks up sounds, which an algorithm converts into vibrations that are transmitted to the eardrum. Put another way: rather than turning up the sound, Earlens actually re-creates the effect of the sound waves. —Marjorie Korn
More Must-Reads From TIME
- LGBTQ Reality TV Takes on a Painful Moment
- Column: How the World Must Respond to AI
- What the Debt Ceiling Deal Means for Student Loan Borrowers
- India’s Female Wrestlers Are Saying #MeToo
- 7 Ways to Get Better at Small Talk
- Florence Pugh Might Just Save the Movie Star From Extinction
- The End of Succession
- Scientists Get Closer to Harnessing Solar Power From Space
