Nano-Shield Windjammer NW2-CA - Designed for Nano Shield NS2-CA - Provides the most effective protection against wind noise - Secure and firm fit with the help of cord and pole - Introduced and invented in 1987 by the original manufacturers of high-quality windjammers. The Windjammer is a high-quality faux fur cover that offers maximum protection against extreme wind noise. When used over a windshield, a wind noise reduction of up to 50 dB can be achieved, ensuring excellent audio recordings. Each Nano-Shield Windjammer is tailored to a specific Nano-Shield size. It is made from materials specially developed for this purpose and has virtually no negative impact on high frequencies.