Apr 23, 2024 · ER20 Plugs High Fidelity Earplugs use a proprietary tuned resonator and acoustic resistor to replicate the natural response of the ear canal.

Apr 11, 2024 · Standard foam earplugs reduce mid-range and high frequencies resulting in muffled speech and music. ETY-Plugs reduce sound levels evenly, preserving clarity of ...

May 15, 2024 · The ER20XS earplugs feature a reusable, low-profile and stem-less design that sits snugly in the outer ear without protruding. This makes it discreet and ...

7 days ago · Standard foam earplugs reduce mid-range and high frequencies resulting in muffled speech and music. ETY-Plugs reduce sound levels evenly, preserving clarity of ...

Aug 31, 2023 · I think it's just your own skin oil or ear wax that has oxidized and turned dark. I would try cleaning with either rubbing alcohol, or Dawn dish soap.

May 7, 2024 · 2 reviews. $399.99. ER20•Plugs | High Fidelity Earplugs. 32 reviews. $13.99 – $18.99. Out of Stock. ER20XS | High Fidelity Earplugs – Dual Flange. 9 reviews. $ ...