ER20 High Fidelity Earplugs were developed to provide low-cost, one-size-fits-most high fidelity earplugs that can be used in a variety of noisy environments.
The goal of the ER20 design was the same as for Musicians Earplugs: to reduce noise but preserve sound quality; in effect, to turn down the noise but not muffle voices, environmental sounds or music.
Ready-Fit Earplugs
Low cost
Ready-fit
Replicates the ear's natural response
Sound quality is preserved
Speech is clear, not muffled
Reduces sound approximately 20 dB at all frequencies
