Nano-Shield Windjammer NW0-AA - Compatible with Nano Shield NSO-AA - Offers the most effective wind noise protection on the market - Secure and firm fit with the help of cord and pole - Introduced in 1987 by the original manufacturers of high-quality windjammers. The Windjammer is a premium faux fur cover that provides maximum protection against extreme wind noise. When used over a windshield, it can achieve a reduction in wind noise of up to 50 dB, resulting in excellent audio recordings. Each Nano-Shield Windjammer is tailored to a specific Nano-Shield size. The material has been specially developed and manufactured for this purpose, ensuring that it has virtually no negative impact on high frequencies.