Razor Slim Green Patriot. PROTECT YOUR HEARING: Protect your hearing at the firing range with the Walker’s Razor Slim Protection Muff with low noise/frequency tuned for natural sound clarity; Quantity: 3 earmuffs. BALANCED SOUND: Features full dynamic range HD speakers for clear balanced sound with sound activated compression reaction of 0.02 seconds with independent volume controls give you greater control over the sound. COMPACT & COMFORT: Comfortable headband with a metal wire frame that folds for easy storage and operates on 2 AAA batteries (included). DESIGN: Composite housing gives you more effective sound dampening; Independent volume controls give you greater control over the sound.