The by-ws9 from boya is a windbreak with an inner depth of 90 mm. This windscreen can be used in combination with various microphones so that you can reduce wind noise during your recording. The by-ws9 is compatible with at least the microphones listed below or microphones with similar dimensions: zoom handy h4n pro, h2n, h5, and h6 tascam dr-05x and dr-07x application boya by-ws9 you use this windscreen to minimize wind noise during your recording while preserving the acoustic sound. The windscreen has an inner diameter of ø 5 - 6.5 cm and is 7.5 cm deep. All microphones with this size are therefore suitable.