3m peltor ear muff optime ii h520b

3M Peltor Optime II H520B ear muff with neck band - Ear muff with neck band - Ear muff is especially suitable for environments with significant industrial noise such as construction machinery, airports and agricultural work - The sealing rings are filled with a unique combination of liquid and foam. The result is an optimal seal with a low contact pressure, so that the ear muff still fits comfortably even after a long time - The sealing rings have ventilation channels and are covered with soft, hygienic patterned foil - Color: green - Average attenuation value SNR 31 dB(A)