Pro Ears Pro 200 Highlander Behind the Head Hearing Protection will increase the enjoyment and improvement of performance for both the hunter and shooter. This headset offers compression technology, wind abatement programming and built-in quality. Circuit board reduces high frequency filtering which may benefit those with high-frequency hearing loss. Pro Ears also offers leather ear cushions with visco-elastic foam that ensures the highest level of sound attenuation and comfort available. An internal battery compartment eliminates unnecessary cuts or voids in the external cup. No tools are required to change the N size 1/2 volt battery. With a pre-set gain of 15 db. The headset contains two circuit boards so no wires are visible. Lightweight fold down design makes them easy to store and carry.