Radians R2500 is a passive earmuff with comfortable full size hearing cups and premium padded headband. Combine with the included earplugs for a hearing protection rating of NRR 37 dB.Full size earcups for comfortPadded headbandCup indent for rifle stock clearanceCompact folding feature2 pair of earplugs includedNRR 37 dB when using dual protection