Adhesive Sound Proof Foam Panels, Pyramid Acoustic Foam Panels 2X12x12inch Professional Soundproof Wall Panels (12 Pieces)Easy Installation: In our sound proof panels, the sound proof foam is upgraded design for adhesive. You don't need to add extra glue to install it. Acoustic panels effectively increase noise and provide a comfortable environment. Acoustic treatment: Our sound foam panels can attenuate and diffuse mid to low frequency sound waves inside the room, which can minimize interference, increase sound clarity. Let you enjoy high-quality music without disturbing othersEco-friendly and safe: no odors. Flame retardants. Do not harm children, pets or adults. Made of environmentally friendly materials, green, healthy and safe. Wide Application: Provides a quiet environment. It is good for home theater rooms, recording studios, churches, or offices. The larger area allows for better foam panels. Eliminate Echoes and Standing Waves-High-density materials have small particles that effectively absorb noise and eliminate echoes. Whether you are watching TV at home, playing the piano in the piano room, or even dancing in the practice room, the acoustic panel will effectively reduce noise and provide the right environment for learning and relaxing. Colour: BlackMaterial: PolyurethaneSize: 30x30x5cmPackage Contents: 12 x Channel Access