3M 7000002329 Earmuff, a reliable and effective hearing protection solution. With an attenuation rating of 27.0 decibels, it helps to reduce noise and protect your hearing. The behind-the-head style ensures a secure and comfortable fit. Designed as earmuffs, the product is not metal detectable and is suitable for CSA Class AL. While not electrically insulated or moisture resistant, it is a corded and noise-attenuating headset. This reliable headband style earmuff by 3M is perfect for those seeking effective noise protection in a comfortable and convenient design.