The 3M Peltor Optime III earmuffs have been specifically designed for high noise exposure, combining effective protection with maximum comfort. The model H540P3EV features a plug-in attachment for helmets with a 30 mm slot and is compatible with all Peltor helmets except for the G2000. The earmuffs have an attenuation value of SNR = 35 dB and ensure high visibility thanks to the Hi Viz version in a bright green color. The unique safety of the Optime III is based on innovative dual-shell technology, which minimizes resonance inside the cup and provides maximum attenuation of high frequencies. The advantage: conversations and warning signals remain clearly audible. An acoustic connection between the inner cup space and the area between the shells also achieves optimal attenuation of low frequencies. The soft, wide sealing rings made of foam ensure a perfect fit. The generous space under the cups offers additional comfort.