CONTROL DESCENT,115FT SS AUTO RETR,21000

This earmuff combines excellent attenuation with comfortable durability. Provides a protective seal without excess pressure while the pivoting earcup connections help maintain the seal and proper alignment. - these lightweight earmuffs may be worn over-the-head, behind-the-head or under-the-chin. - large earcup openings and soft, foam-filled cushions offer a snug, comfortable fit.- Durable, lightweight construction of non-conductive, dielectric plastic.- noise reduction Rating* NRR 25 dB (CSA class A) when the band is worn over-the-head. NRR 26 dB (CSA class AL) when the band is worn under-the-chin. NRR 26 dB (CSA class AL) when band is worn behind-the-head.*The NRR may overestimate the hearing protection provided during typical use. 3M™ recommends reducing the nrr by 50% for estimating the amount of noise reduction provided. 3M™ is leading the advancement of hearing conservation™.