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
- Why Trump’s Message Worked on Latino Men
- What Trump’s Win Could Mean for Housing
- The 100 Must-Read Books of 2024
- Sleep Doctors Share the 1 Tip That’s Changed Their Lives
- Column: Let’s Bring Back Romance
- What It’s Like to Have Long COVID As a Kid
- FX’s Say Nothing Is the Must-Watch Political Thriller of 2024
- Merle Bombardieri Is Helping People Make the Baby Decision
