M2 Multi-Purpose EarmuffsExclusive iridescent color and curvy shape for great looks. Headband made of lightweight plastic for comfort all shift long. Six different adjustment points provide a custom and comfortable fit for most head sizes. SoftCoat® covering on cups and yoke helps muffle sound transmission. Special grips molded into the cups make Fitting Instructions and alignment quick and easy. Color: Exclusive Iridescent Color; Noise Reduction Rate (NRR): 26 dB; Weight: 1.20 lb.