The 3M™ PELTOR™ Optime™ III Ear muffs have been developed for use in extremely high noise environments, particularly those dominated by low frequency sounds. The product is based on a technology featuring double cup design to help minimise resonance effect, resulting in excellent high frequency attenuation. In addition, a combination of specially designed spacer and cup helps to provide excellent protection against high frequency sounds. Optime™ III Ear muffs have been developed for use in extremely high noise environments, particularly those dominated by high frequency sounds. 35db Black/Red H540A-411-SU
