The Leightning earmuffs provide protection from damaging noise levels while delivering to users an unprecedented degree of comfort. The earmuffs use 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 an NRR of 30 dB. L3 muffs are the largest of the Leightning line-up, yet also provide the greatest amount of protection. Not CE certified.