Caldwell Passive Hearing Protection 23dB NRR Low-Pro Gray. With a comfort padded headband soft comfortable ear cushions and uninterupted cheek weld these are the most comfortable passive earmuffs you'll ever wear at the range. They fold to fit compactly in your range bag and come in youth adult and low-profile designs for every age and preference. Specifications for Caldwell Passive Hearing Protection: Manufacturer: Caldwell Color: Gray NRR: 23 dB Features of Caldwell Passive Hearing Protection 30/23db Noise Reduction Rating Comfort Padded Headband Soft Comfortable Ear Cushions Compact folding design Package Contents: Caldwell Passive Hearing Protection Caldwell 1103305: Passive Hearing Protection 23dB NRR Low-Pro Gray