This handy pack includes both eye and ear protection. Shooting glasses with tinted polycarbonate lenses offer both eye protection and enhanced target visibility. Soft foam earplugs provide noise reduction up to 31dB and come with a plastic storage case. Adjustable-fit earmuffs with padded headband have a noise reduction rating of 27dB. Noise Reduction Rating (NRR) is the measure, in decibels, of how well a hearing protector reduces noise, as specified by the Environmental Protection Agency. The higher the number, the greater the noise reduction.