Allen Company Reaction Lo-Profile Shooting Earmuffs - The Reaction Lo-Profile Shooting Muff by Allen has a Noise Reduction Rating (NRR) of 26dB and meets ANSI S3.19 and CE EN352 requirements. The low-profile foam padded ear cups fold down easily for storage. The Reaction Low-Profile Shooting Muff fits most everyone using the adjustable yoke. Noise Reduction Rating (NRR) of 26dB Meets ANSI S3.19 and CE EN352 Requirements Foam Padded Ear Cups Adjustable Yoke