Walkers Alpha Muffs SSL (Super Slim Lite) provides unsurpassed sound quality. Featuring two wind resistant, high frequency stereo microphones for precise sound directionality, they offer up to 5x hearing enhancement and a noise reduction rating of 24db. Take these Walkers ear muffs on your next trip to the shooting range or hunting. The highly advanced technology incorporated in the Walkers Hearing Protection allows excellent speech clarity, superior hearing protection and sound enhancement. Guard your valuable hearing with an additional layer of protection given by the electronic sound activated compression circuitry, which reduces loud sounds such as muzzle blasts to levels safe for your ears. Walkers Alpha Power Muffs also provide the ability of amplifying sound up to 5x your normal hearing with the two microphones on each cup.