FeaturesSilicone tips contain a foam core for an effective seal and good noise reductionFlexible band can be worn under the chin for use with hard hatsIdeal for intermittent hearing protection needNoise reduction rating (NRR) 20 dB when the band is worn under the chin and 17 dB when the band is worn behind the headBand style hearing protector features soft, conical tips that swivel for easier fitting and greater comfort