Description: Multilayer Noise Reduction: Multilayer structure forms a system to absorb noise and reduce noise from back side and the surrounding.High density triangle shaped sponge can effectively capture and absorb main sound source and also avoid voice reflection. Foldable and Portable: 5 noise reduction planes combine with numerous heat dissipation holes strongly reduce noise and heat from recording equipments. Large size, adjustable, foldable: Its folding panel function can be adjusted to different angles, so as to provide you with the best angle for recording. Small and foldable design, easy to carry. High Density EVA Sponge: The inside of the microphone cover is made of absorbent EVA sponge material, which maintains the clear of the human voice and the instrument during recording, eliminating the interference of the audio waves and the external environment. Professional Isolation Shield for Recording : You can record in a professional radio studio, personal studio which creates a better environment for recording. Specification: Material: Sponge Size Chart: 75cmx35cm/29.53inchx13.78inch Package Includes: 1 Microphone Isolation Shield Note: Please allow slightly errors due to manual measurement and different monitors.