3M 7000009667 is an earmuff designed for hearing protection with an attenuation rating of 21.0 decibels. Its over-the-head style ensures a secure fit and maximum comfort. The product code H6A/V represents its earmuff shape. It is not metal detectable and does not provide electric insulation or dielectric properties. This earmuff is not corded or moisture resistant and does not have Bluetooth functionality. However, it is noise attenuating and offers excellent noise reduction. The earmuff style is over the head, providing reliable hearing protection.