3M 7000052743 is a hard hat attached earmuff designed for hearing protection. It has an attenuation rating of 21.0 decibels and is shaped like traditional earmuffs. This product does not have metal detectable properties and is classified as CSA Class B. It is not electrically insulated or dielectric. The earmuffs are not moisture resistant but are noise attenuating. They can be mounted on a cap and do not have Bluetooth capabilities. Overall, these 3M earmuffs provide durable and effective hearing protection for various industrial applications.