Features 1.NOISE REDUCTION CYLINDER: The noise reduction cylinder is designed and processed with high quality noise reduction sponge. Reduce environmental noise and sound reflections isolate your microphone in a quiet recording environment and reduce sound reflections at the same time. 2.FUNCTION: Through the noise reduction sponge to absorb and reflect the surrounding noise your microphone can be isolated in a quiet recording space so that the microphone can specifically record your voice during recording and singing. 3.CLEAR AND PURE: It can help you record a complete sound spectrum during the recording process and greatly reduce external environmental noise while also making your recorded sound clear and pure. 4.WINDPROOF AND NOISE REDUCTION SCREEN: The wind proof and noise reducing screen can not only reduce the reflection of indoor recording sound but also effectively reduce the interference of outdoor wind and environmental noise on human voice recording. 5.OPTIMIZE THE SOUND: Optimize your voice capture your pure human voice and reduce the interference of external noise on the recorded sound. Reduce post sound trimming reduce redundant equalization and post production needs. 6.INTEGRATED BLOWOUT GUARD: Integrated blowout guard a detachable blowout guard is designed in front of it to prevent popping sound from being produced during recording and the erosion of the microphone capsule by saliva. Specification Item Type: Microphone Sponge CaseMaterial: Noise Reduction SpongeMountable Microphone Shell Diameter: Approx. 45mm-65mm / 1.8in-2.6in Package List 1 x Microphone Sponge Cover Note Please allow 01mm / 00.04in error due to manual measurement. Thanks for your understanding.