Foam wind shields prevent disturbing sounds that arise from wind, rapid movements of the microphone pole or sensing from a short distance. They are made of special foam (polyurethane foam with open cells) and do not cause disturbing resonances or affect the directional characteristics of the microphone. The only negative is a slight attenuation of frequencies in the highest band. Wind noise attenuation is approx. 26 dB, measured without electrical filtration in a wind speed of 20 km/h created by a quiet fan. Attenuation at a frequency of 15 kHz is approx. 3 dB. WS 87 is intended for microphones M 147 Tube, TLM 50, TLM 67, TLM 103, TLM 103 D, TLM 170 R and U 87 Ai. The diameter of the wind protection is 90 mm. It is produced in black.