ear protection
Devices that reduce workplace noise and noise caused by power tools.
safety earmuffs 
Pair of rigid shells that are connected by a headband and contain soft foam cushions.
foam cushion 
Soft material that fits around the ears to make the headband more comfortable.
headband 
Flexible piece that keeps the earmuffs in place.
earplugs 
Device with plugs that are secured to the entrance of the auditory canal by a headband.