Designed for use with the Westone's DefendEar Concert (Style 49) Musicians’ Earplugs.
Etymotic filters feature a flat frequency response that allows musicians to hear their performance accurately while providing hearing protection.
Etymotic ER-25 Filters provide 25 dB of essentially flat sound reduction from 125 Hz through 8 kHz.
Westone recommends the ER-25 filter for situations where the ER-15 does not provide enough hearing protection.
Note: If necessary, customers have 2 weeks from the date of invoice to evaluate the attenuation filters. A RMA number will be required to return or exchange the filters; the filters must be returned within 30 days (includes the 2 week evaluation period). The RMA number can be obtained by calling (800) 525-5071.