This is the perfect pair of earmuffs for shooting enthusiasts who wish to protect their hearing while also enjoying the ambient sounds of the range. The earmuffs are lightweight and foldable, making them easy to carry around. They come with a case and batteries included, and can be powered by a 3.5 mm jack. The earmuffs are unisex and compatible with AAA batteries. Their sport/activity category is range and shooting equipment. Osprey’s Electronic earmuffs are low profile earmuffs that that amplify low-level sounds 6 times while reducing harmful gun fire or impulse noise above 82 decibels. They come with a compact carrying case and have an external battery compartment for easily replacing batteries. Durable POM Headband wrapped in soft PVC leather. Batteries Required: (2) AAA. Compact Design for rifle and fast action shooting. Amplifies low-level sound while reducing harmful gun fire or impulse noise above 82 Decibels. External Battery compartment for easily replacing batteries.