The BY-B05 3-Pack Fur Windscreens for Lavalier Microphones are slip-on, artificial fur cover that are designed to fit over foam windscreens and minimize wind noise in outdoor recordings while remaining acoustically transparent. Made from high-quality synthetic fur specifically designed for wind isolation. They provide wind protection with virtually no additional loss of high frequencies. Now you can record, interview or broadcast in any weather. The adjustable design allows them to fit most common lavaliers and is also compatible with BOYA BY-M1, BY-WM8, BY-WM6, BY-WM5, BY-WM4, BY-LM400, BY-LM300 lavaliers.