3M 7100203150 is a protective communication product, specifically earmuffs, designed to provide hearing protection. With an attenuation rating of 24 dB, it helps reduce noise exposure. These earmuffs are wired and can be attached to a hard hat for convenience. Additionally, they offer external audio input for communication purposes, including two-way communication via an external 2-way radio. The earmuffs also feature a dynamic microphone for clear communication. This product is CSA Class A certified and weighs 251 g. Perfect for industries where hearing protection and communication are crucial.