High-Density Sponge: Efficiently filter out ambient noise and captures pure human voices, it uses a studio-grade noise-canceling sponge that can effectively capture and absorb noise and avoid sound reflections from being absorbed by the microphone Multi-sided Noise Reduction: Our filter adopts a five-sided seal design to effectively reduce noise in different directions. The design of the opening on 1 side can avoid the divergent sound from during the recording process, the reception is more specific, and the recording is clearer and true Light and Convenient: Our filter have good noise reduction and It can be easily mounted on various desktops, small tripods, cantilever arms and floor stands It is convenient to install and easy to use Wide Application: It has a light portable design, easy and quick installation, acoustic noise reduction strength, it is not only suitable for personal live recording at the same time for professional recording studio, radio studio, outdoor performance, etc Compact Dimensions: Measuring 9.2cm in hole diameter and 14.5cm in length with a sponge material construction, it offers an ideal balance between size and functionality for various recording needs Specification: Material: Sponge Size Chart: Hole Diameter: 9.2cm/3.62inch Length: 14.5cm/5.71inch Package Includes: 1MicrophoneSoundproof Sponge Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.