When working in low-light conditions, the Howard Leight by Honeywell Leightning L3HV Hi-Visibility Noise Blocking Earmuff provides additional jobsite protection. The bright green earcups and reflective headband keep you visible at night and in bad weather conditions. Patented Air Flow Control technology in the earmuff delivers optimal attenuation across all frequencies for excellent hearing protection. The steel-constructed headband is tough enough to withstand most industrial environments but is also padded with soft foam for long-wearing comfort. When itís time to replace the ear cushions, a convenient snap-in design makes it a quick and simple task. Noise Reduction Rating: 23.