Amplifies ambient sounds while muffling harmful noise
Directionally placed microphones let you clearly hear important communication like alarms, warning signals and coworkers? voices. When noise level reaches 82dB or above, these earmuffs revert to passive hearing protection. Spacious earcups and non-deforming quick-click outer headband provide comfort and convenience. 23 dB NRR. Meets 29 CFR 1910.95, plus ANSI S3.19-1974 and S12.6/1997. USA made.
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2016 Master Catalog: Page 55