The 3M PELTOR Optime II H520P3E-410-GQ earmuffs provide advanced hearing protection with an attenuation of 31 dB SNR, specially designed for extremely noisy environments. This version is equipped with a P3E helmet attachment, allowing direct mounting on most standard safety helmets. The slim, balanced earcup design ensures effective noise reduction while maintaining comfort during long periods of use. Soft, foam- and liquid-filled cushions reduce pressure around the ears. Ideal for construction, heavy industry, airports, agriculture, and forestry applications.