3Mª Peltorª Black Over-The-Head Earmuffs with 31 db NRR makes them perfect for very high noise circumstances and deliver high attenuation by merging advanced technologies consisting spacers, ear cup liners and inventive foam contained in the cushions. Earmuffs feature electrically insulated wire headband referred as dielectric that offers steady pressure over prolonged wearing periods and are an improvised advancement in hearing conservation. They incorporate convenience, design and protection while consist ear cup pivot points that tilt for flawless comfort and efficiency. Earmuffs have replaceable ear cushions and foam liners while the metal components of the headband has been enclosed by non-conductive material for use in a low voltage electrical hazard.