3M Peltor Optime 101 Behind-the-Head Earmuffs H7B, NRR 26 dB NRR, Case/10

3M™ Peltor™ Optime™ 101 dBA behind-the-head earmuffs from Blue Monster Prep fit well with most helmets, eyewear and other safety equipment. Features For noise levels up to 101 dBA Stainless steel band distributes weight for low-pressure fit Liquid/foam filled earmuff cushions Noise Reduction Rating (NRR)*: 26 dB. CSA Class A Stainless steel band distributes weight for low-pressure fit Earcup pivot points that tilt for optimum comfort and efficiency Liquid/foam filled earmuff cushions Color-coding for compliance sighting Noise Reduction Rating (NRR)*: 26 dB. CSA Class A Includes 10 pairs of Earmuffs *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.