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Not all humans can hear this sound. Can you? Take the 20hz - 20000hz audio spectrum test

20 - 20,000 hz Audio Spectrum Test. Only a Rare Few can hear above 18,000hz. Take it to find out if you're one of them. Title ...
Wired

I Tried Hear.com's At-Home Test for New Prescription Hearing Aids. Here’s How It Works

Putting aside their exorbitant cost, the trouble with prescription hearing aids is the prescription. Find a doctor. Get an appointment. Sit in a waiting room. Suffer through an hour of testing before ...