3M PELTOR Optime 101 Earmuffs H7B, Behind-the-Head
- Stainless steel band distributes weight for low-pressure fit.
- Noise Reduction Rating (NRRA Class A.)*: 26 dB. CS.
- The NRR may overestimate the hearing protection provided during typical use.
- Noise Reduction Rating (NRR)*: 26 dB. CSA Class A. *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.