Ear defenders,Noise-proof and noise-reducing earmuffs for use with V-type helmets. Hard hat ear defenders,The helmet mount version can be mounted directly on many industrial safety helmets without the need for additional accessories. Helmet ear defenders,A high-density foam pad that provides a high-quality, low-noise for the wearer's comfort. Ear muffs,This is based on a two-shell technology that minimizes resonance in the enclosure for optimum high frequency attenuation. Noise cancelling ear defenders,Sealed ring width filled with a high density sponge for optimum fit and reduced contact pressure.