The Walker's Razor Slim Electronic Muff is equipped with advanced sound-activated compression technology, reducing harmful noises like gunshots and loud machinery to safe levels while allowing you to stay aware of essential ambient sounds. With a noise reduction rating (NRR) of 23 dB, it offers robust protection in high-noise environments to help safeguard your hearing. No more muffled sounds or distorted audio-these earmuffs feature high-definition speakers that deliver clear, amplified audio directly to your ears. Whether you're at the range, coordinating with a hunting partner, or working on a noisy job site, enjoy crisp, natural sound without compromising on safety. Two Omni Directional Microphones Independent Volume Controls Audio Input Jack Sound Activated Compression