Fits Shotgun Microphones up to 7-inches (18cm) Long Large 50mm Diameter Opening Slips Over Existing Foam Windscreen for Extra Wind Protection Reduces Wind Noise by up to 40dB Minimizes noise and ambiance 1 Year Movo Warranty with USA-Based Support The Movo WS-S1000 is a microphone windscreen made of an artificial rabbit fur material that greatly reduces noise by providing enhanced wind diffusion. This windscreen is designed to fit shotgun microphones up to 7-inch Length. The "deadcat" windscreen features a large 50mm opening, allowing it to slip over the existing foam microphone windscreen providing increased wind protection.