Howard Leight Leightning L0F Super Slimline Passive Earmuffs - This product uses Air Flow Control technology that dictates how sound reaches the ear, producing excellent dB reduction with a slimmer overall profile than competing earmuff designs. Features a steel headband with soft foam padding, snap-in ear cushions, adjustable height and a Noise Reduction Rating of 23 dB. Noise Reduction Rating: 23 dB Provides protection from noises with the ultimate in comfort Compact folding design for easy movements Designed with sleek ultra-slim earcups Padded headband and soft ear cushions for all day comfort Steel wire construction provides high performance and durability