The innovative shape of the Uvex hi-com earplugs reduces the level of sound that normally builds up in the inner ear when wearing hearing protection. Integrated cavities result in a larger surface area in the direction of the eardrum. The earplugs provide softer acoustics and absorb disruptive noises " they also allow excellent speech perception. General features Earplugs with low sound absorption and excellent speech perception Available colours: lime, fawn Version with cord Protection features Meets standard EN 352-2 and the additional requirement "Warning signal hearing, general" (W) 24 decibels insulation H: 26 dB, M: 20 dB, L: 18 dB