Simple installation: this sound-absorbing foam panel is triple compression packaging 30-120 minutes after unpacking will return to its original state faster than similar products Please keep the wall flat and dust-free before installation You can use adhesive spray Strong double-sided adhesive and other effective bonding extrusion Easy installation Sound protection: The acoustic foam triangular wedge structure of the acoustic design provides better absorption and helps reduce sound waves, reduce wall reflections and echoes Absorb high-frequency sound waves to achieve noise reduction Wide range of application: not only suitable for studio and office wall ceiling on-site sound wave processing, make your office life more quiet and comfortable, but also suitable for recording studios, vocal studios, control rooms, conference rooms, podcast studios, churches, theaters, KTV dance halls, music rooms and game rooms and other scenes sound insulation and noise reduction Eco-friendly material: made of polyurethane foam, environmentally friendly flame retardant, moisture-proof, good air permeability, please feel free to use If you are not satisfied with our products, please "contact the seller" We will provide you with a satisfactory solution. Specifications Usage: 1.12 square meters per 12 wedge acoustic panels 1 inch x 12 inches x 12 inches per piece Studio acoustic foam assembled as Foam wall panel Sound studio foam Acoustic foam Acoustic panel sound absorption Foam panel Foam panel Acoustic foam Acoustic foam Soundproof infill wall