Howard Leight Leightning L2FHV Hi-Visibility Bright Green Folding Noise Blocking Earmuffs with 30 dB NRR are designed for giving workers with a total solution for both hearing protection and visibility at night and during the day. Metal earmuffs feature a patented Air Flow Control? technology for optimal attenuation across all frequencies and a robust steel headBand to sustain demanding use in tough environments. Earmuffs haven exclusive reflective headBand that illuminates under light for increased contrasted visibility and safety on the job. Earmuffs include snap-in ear cushions for quick replacement and easy padded foam headBand supports longwearing comfort with minimal pressure on the head. They feature a telescopic height adjustment that remains fixed during usage. Earmuffs are perfect for wearing at night, during the day, in low light and under inclement weather conditions.