3M Ear Defenders Peltor Optime III Red/Black

3M PELTOR Optime III Earmuffs, 35 dB, Black/Red, Headband, H540A-411-SV 3M Product Number H540A, 3M ID 7000039622 · · · Ideal hearing protection against noise arising from a wide range of applications in the workplace and leisure activities · · Double casings technology helps minimise resonance effect · · Large space inside cup helps reduce moisture and heat build-up · · Large space inside cup helps reduce moisture and heat build-up · · Soft wide cushions helps reduce pressure around the ears and improves comfort and wearability · · Easy to understand attenuation symbol to help ensure correct product selection · · Helmet mounted version fits directly to many industrial safety helmets without the need for an adapter