Walker's Razor Slim Electronic Muff 23 dB Over the Head Flat Dark Earth/Black PolymerWith 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 Brand Walker's Category Hearing Protection Series Muff Model