3M™ 7000009669 Peltor™ Optime™ 101 Over The Head Earmuffs, H7A, 27 NRR

Peltor™ Optime™ 101 over-the-head earmuffs feature a stainless steel headband for consistent force and effective hearing protection. For noise levels up to 101 dBA, these over-the-head earmuffs provide effective hearing protection. *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™.