Dielectric, three position earmuff. 27 NRR over-the-head, 26 NRR under-chin/behind-neck. Tested at an independent NVLAP accredited laboratory. Attractive black and silver design. Soft-Seal ear cushions provide exceptional comfort and fit Special foam head pad for all day comfort Sculpted headband with molded grips for easy cup adjustment Consistent full spectrum attenuationIncludes Crown StrapNSN # 4240 - 01 - 496 - 1213
