3M H10P3E Peltor Optime 105 Helmet Attachable Safety Earmuff, Ear Protectors, Hearing Protection, NRR 27 dB Black

3M Peltor Optime 105 Cap-Mount Earmuffs Double-shell technology for noise levels up to 105 dBA Provide effective hearing protection for safety and job site performance Noise Reduction Rating (NRR)*: 27 dB. CSA Class AL