WALKER'S XCEL DIGITAL ELECTRONIC MUFF This XCEL Electronic hearing protection muff for shooting combines sophisticated sound processing, intuitive menu navigation, and rich electronic control features with an intelligent, forward-thinking approach to design and ergonomics that delivers a hearing protection and enhancement system without precedent in the shooting sports and hunting industries. The XCEL range shooting muff's next-generation Sound-Activated Compression and variable Dynamic Sound Suppression automatically adjusts compression time according to noise level intensity and duration instead of using conventional "fixed-time" compression. The result is improved hearing protection regardless of the sound environment. FEATURES: - Advanced Digital Circuit; - Variable Dynamic Sound Suppression; - Hi Gain Omni Directional Mics; - Wind Noise Reduction; - Auto Shut Off; - New Ergonomic Head Band Design; - Less Holes In The Muff Cups To Improve NRR; - Rubber Bumpers On Lower Cup; - Low Battery Warning; - NRR - 27db.