Walker's Razor Patriot Series Electronic Earmuffs - With its ultra-compact design, the Razor Slim electronic muffs offer superior hearing protection in a low-profile design. Two hi-gain omnidirectional microphones pick up outside noise and broadcast it through full dynamic range HD speakers for an ultra-clear, balanced sound. Sound activated compression has a blazing fast 0.002 second reaction time to ensure your hearing is always protected. The Razor Slim electronic ear muffs are priced right and packed full of innovation. Patriot Series Razor ear muffs feature a velcro attachment on the headband that is compatible with your favorite patch. Omni Directional Microphones Low Noise/Frequency Tuned For Natural Sound Clarity Full Dynamic Range HD Speakers For Clear Balanced Sound Sound Activated Compression 0.02 Second Reaction Time Sound Dampening Composite Housing Patriot Patch Compatible Audio Input Jack Quickly Change Batteries By Sliding Up A Small Latch On The Top Left Of The Muff 2 AAA Batteries Included