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Etymotic ER20XS High Fidelity Earplugs

Etymotic ER20XS High Fidelity Earplugs


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Etymotic ER20XS High Fidelity Earplugs are the highly-awaited next generation of Etymotic's industry-leading ETYPlugs® High-Fidelity Earplugs for musicians.  Etymotic ER20XS High Fidelity Earplugs feature patented Hi-Fi technology that lets you hear all frequencies clearly, just as if you had no plugs in, but at a lower volume level.


  • New, discreet design
  • Performance matches Etymotic's original high-fidelity earplugs developed for musicians
  • Unsurpassed clarity
  • 20-dB equal sound reduction across the spectrum of hearing
  • Richness of music is preserved; speech remains clear, just quieter
  • Reusable

ER20XS earplugs feature a low-profile, stem-less design that sits snugly in the outer ear without protruding. This makes it especially comfortable to wear under hats, helmets and other headgear. ER20XS earplugs come with a small, flexible pull tab that allows for easy removal, an easy-to-install neck cord and a carrying case.

ER20XS earplugs are discreet and have the identical response of ETYPlugs through 4 kHz. Above 4 kHz they have improved high-frequency clarity without compromising protection.

ER20XS eartips are interchangeable. ER20XS earplugs can also be used with foam eartips with essentially no change in response.

Technical Specifications

ER•20XS use a tuned resonator and acoustic resistor to replicate the natural response of the ear canal. This unique construction, combined with Etymotic’s proprietary sound path, reduces sound levels evenly across the frequency range without changing the sound quality. Result: Music and speech remain clear, but quieter and safer.

ER20XS Technical Specifications for Music

ER•20XS provide almost equal sound reduction (20 dB) across the range of hearing. Foam earplugs reduce the high frequencies, resulting in muffled speech and music.


  • ER20XS earplugs
  • Neck cord
  • Case
  • Instructions

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