ear protection for shooting range, electronic hearing protection for impact sport, safety ear muffs, nrr 22, ideal for shooters and hunting with travel storage carrying case bag blue awesafeus <b>why choose awesafeus electronic earmuff? </b><br> safety awesfaeus electronic earmuff offers the ultimate in safety and ear protection. <br> the safety is delivered through distortion-free amplification (up to a safe 82 db) of important low level sounds like range commands and conversation. the protection comes from the instant blocking of any noise above 82 db. <br> quality and technology insurance our over-the-head ear muffs are engineered to work in harsh environments.<br> two layers of professional noise dampening circuit board, high sealing solid cup and the unique double-shell are used, all combined to achieve an industry-leading nrr. </b></p><p> specification operating temperature: 50¡æ~0¡æ <br> power supply: 2aaa batteries (included) <br> sound volume: max. 82db <br> ear cushion material: sponge <br> package contents:<br> electronic earmuffswith travel storage carrying case bag ¡á 1 <br> user manual ¡á 1<br>