ETY•Plugs® HD High-Definition Earplugs

ETY-Plugs HD High-Definiton Earplugs
ETY-Plugs HD High-Definiton Earplugs
ER Noise Exposure White PaperNoise Exposure: Explanation of
OSHA and NIOSH Safe‑Exposure Limits and the Importance
of Noise Dosimetry
Safe-in-Sound Award for Innovation
in Hearing Loss Prevention

Awarded by NIOSH and the National
Hearing Conservation Association

High-Definition Earplugs

ETY•Plugs® HD are the world’s highest definition ready-fit earplugs. They reduce most noise to safe levels while preserving the clarity of speech and environmental sounds. ETY•Plugs HD are configured to replicate the natural response of the ear canal so that when sound enters the earplug, it is reproduced unchanged, exactly the same as the ear would hear it, only quieter.

ETY•Plugs are reusable. With heavy use the material can weaken and could break. Replace every 3-6 months.
  • Features
    • High-definition hearing protection
    • Comfortable, 3-flange fit designed to seal the ear
    • Reusable and long lasting
    • Detachable cord to prevent loss
    • Available in 2 sizes* — standard and large
* Studies by Etymotic Research and an independent lab show that the smaller of the two sizes fits the majority of ears. Ear size cannot be predicted by the appearance of the outer ear, or by a person's physical size, age or gender.
  • Performance Benefits
    • Reduces sound levels evenly so that speech and environmental sounds are clear and natural, not muffled as with foam earplugs
    • Reduces sound approximately 20 dB across the range of hearing
    • Provides enough sound reduction in most settings to protect hearing, but keeps users aware of their surroundings
    • Reduces the potential for hearing damage outside of work from loud machinery, vehicles, power tools, sporting events and recreational activities
    • Provides better hearing in noisy environments because ears don't overload
    • Reduces fatigue from long-term exposure to noise
    • Not recommended for use with impulse noise, e.g., shooting sports
  • Regular use of high-definition ETY•Plugs HD while operating machinery, power tools or loud vehicles will protect hearing from the cumulative effects of overexposure to loud noise throughout life.
  • A little time may be required to acclimate to these earplugs. Most users comment that they hear speech and environmental sounds better when using ETY•Plugs HD.
  • ETY•Plugs HD are reusable, but with repeated use, the eartips may lose elasticity. For best performance and retention, if you use your ETY•Plugs HD constantly, replace them every 3-6 months.

Hearing loss from exposure to loud sound affects millions of people. Noise-induced hearing loss is preventable, but most people do not know how long they can listen to loud sound without risking hearing damage. Sound level meters measure at discrete times, while dosimeters measure continually over time for a more accurate estimate of risk.

The ER200 (Basic) and ER200D (Advanced) dosimeters are inexpensive portable devices that provide an estimate of noise dose and alert the user to the risk of over exposure to loud sounds.

For Domestic U.S. Orders

Visit the Customer Service Shipping page for pricing.

For International Orders Under $50.

When ordering from the Etymotic web store ( an automatic UPS shipping fee is charged to your credit card.

International orders less than $50 are shipped via the U.S. Postal Service for $2.00. Once the order is processed through the Etymotic shopping cart, a refund for the difference will be applied to your credit card.

Black Cord for ETY-Plugs HD
BUY NOW - $1.95 Each

ETY-Plugs HD Extra Case
BUY NOW - $1.00 Each

Inserting Your Earplugs

ER20 Earplug Insertion IllustrationInsert the plug by grasping the end cap and inserting the eartip until the largest flange is sealed in the ear canal entrance. To ease insertion, moisten the plug and pull the ear outward and upward. Earplugs must be inserted correctly for optimal effectiveness.

Removing Your Earplugs

Remove with a slow twisting motion.


  • Do not take earplugs apart.
  • Clean after each use.
  • Wipe clean with a damp cloth as needed.
  • Do not immerse earplugs in water.
  • Do not clean with harsh chemicals.
  • Alcohol is not recommended.


ETY•Plugs are reusable, but with repeated use, the eartips may lose elasticity. For best performance and retention, if you use your ETY•Plugs constantly, consider replacing them every 3-6 months.

ETY•Plugs HD 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: The sounds of tools, machinery, vehicles and speech are clear, but softer and safer.

ETY•Plugs HD provide almost equal sound reduction (20 dB) across the range of hearing. Foam earplugs reduce the high frequencies, resulting in muffled sound.    

ETY•Plugs HD is a trademark of Etymotic Research, Inc.
"et-im-oh-tik" true to the ear
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