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Pair of black memory foam comfort earths for two way radio earpieces (2-wire surveillance kits) designed for high-noise environments. Up to 42dB noise reduction. Comes in a pair of 2 eartips. Ships from the USA.
Genuine attenuation per ANSI S3.19-1974. Test conducted by
Noise Reduction Rating (NRR) per EPA-1979 = 29.5.
Depending upon the frequency (Hz) the noise reduction amount varies in decibles.