Our BOLT Earmuffs are designed for adjustable, comfortable wear. These cap-mounted earmuffs provide an adjustable fit thanks to the center-mount design. The earmuffs also allow for balanced wear with a 360 rotational arm that can pivot to multiple storage positions when not in use. The comfortable, pressure-reducing cushion helps avoid pressure and discomfort when wearing the earmuffs for extended periods. These earmuffs have the indicated NRR to protect you against hazardous noise and are CSA Class A. Our earmuffs are a part of the BOLT System that allows users to secure accessories simultaneously. Compatible for use with MILWAUKEE Safety Helmets and Hard Hats.