Carbon Fiber Edition of the world famous radio mic featuring double chrome plated grille screen with soft vinyl lip grip, and a flexible heavy-duty coil cord that extends to 7.5 feet. The Astatic model 636L noise-canceling dynamic microphone is ideal for CB, Amateur Radio, and SSB communications. It fits all 4-pin radios, and effectively reduces wind and vehicle noise. Perfect for high background noise situations, like trucks.