[Advanced sound insulation]: Made of polyester fiber cotton, the sound insulation effect is any foam on the market. Less odor, environmentally friendly, non-, corrosion-resistant, and non-fading. You can completely isolate indoor and outdoor noise. Professional sound insulation board, you can also use it as a bulletin board, multi-, more convenient. [Fashion appearance]: grooved panel , it can not only noise, also can be used as a for your favorite space. Just and enjoy It can be used in recording studios, KTVs, offices, home theaters, etc., allowing you to leave countless beautiful memories in a comfortable environment. [Good noise reduction]: If you are mixing in a studio, you must lower the sound. Unnecessary noise during recording will destroy it. The sound-absorbing board can the sound produced by low frequency, middle frequency and high frequency, which is suitable for recording. [Easy to install]: They can be used as acoustic covers for walls, ceilings and doors, just use glue or tape to connect . Easy to shape and cut to size, easy to change without affecting performance, no tools or materials required. [Wide application]: High-quality acoustic treatment suitable for many occasions, not live sound on the walls of studios and offices, also for recording studios, control rooms, office home theaters, and home offices. Colour:Silver gray Material:Polyester cotton Size:30 x 30 x 0.9cm Package Contents: 16 * Sound absorbing panels Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.