Noise Reduction Performance: self-adhesive soundproof panels, effectively absorbing both high and low-frequency noise. Perfect for recording studio acoustical treatments and home theaters. Premium Acoustic Material: Designed as high-density soundproof foam panels, these polyester fiber acoustic panels optimize audio precision and enhance durability. Coverage & Versatility: A 12-pack of 12x12inch acoustic foam panels provides 11.6 sq.ft. Use them as decorative sound-absorbing panels for walls, ceilings, or doors - ideal for studios, home theaters, or recording spaces requiring professional acoustic treatment. Easy Installation: Featuring an advanced self-adhesive backing, these soundproofing panels require no tools for quick, hassle-free installation. Versatile Applications: Unique shell pattern blends functionality with aesthetics, making them effective acoustic wall panels and stylish decorative accents for studios, classrooms, and living spaces alike. Note:with adhesive, the color and style of adhesive are random, and the designation is not accepted. The product has slight chromatic aberration, which is subject to the material object. Color:A:White Material:Polyurethane Size:30x30x0.9cm Package Contents: 12 * Acoustic foam