Neumann WNS100 black foam Windscreen. Made from open-cell polyeurathane foam. Wind noise attenuation 18 dB. Attenuation at 15 kHz 2 dB. Ø 45 mm. Suitable for the following microphone modles KM 120, KM 130, KM 131, KM 140, KM 143, KM 145, KM 150, KM 183, KM 184 KM 185. (Analogue or Digital versions).