3M Peltor Optime 101 behind-the-head earmuffs fit well with most helmets, eyewear and other safety equipment. For noise levels up to 101 dBA, these behind-the-head earmuffs provide effective hearing protection.• 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*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.

• For noise levels up to 101 dBA
• 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.