Worked great for me, until they changed to design and effectiveness.
I bought these for a rare form of tinnitus that increases with volume of sounds. These ear plugs reduce sound above the threshold that affects my condition and eliminates the tinnitus completely, and allows me to hear lower sounds well.
Unfortunately the mfr changed to design of these making the sound reduction much lower. They no longer sell the previous design even though there is likely a market for them.
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