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Etymotic ER20 Small Clear Earplugs HiFi (Blue)
Frequency
Etymotic ER20 Small Clear Earplugs HiFi (Blue) (Health and Beauty)
4
Buy at Amazon.com
Etymotic ER20 Small Clear Earplugs HiFi (Blue) (Health and Beauty)
4
Buy at Amazon.com
Customer Review
Good product, comfort is pretty good, the sound reduction corresponds to my expectations but especially the frequency spectrum is well respected, only the sound intensity is reduced sound stays true.
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