Etymotic Research ER20XS-SMF-P High-Fidelity Earplugs, 1 Pair, Standard Fit, Polybag Package
ER20XS earplugs are smaller, more discreet and have identical frequency response characteristics and performance of ETY•Plugs® which have protected the ears of hundreds of thousands of musicians worldwide since their introduction. 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 …
