Sound-Absorbing Principle: High-quality polyester fiber material and porous structure in soundproof wall panels capture and absorb air vibrations in sound waves；effectively reduce sound reflection and echo；improve the purity and clarity of sound；install as a whole for higher noise reduction Brick Acoustic Wall Panel: Brick design adds beauty to your interior；complements various decorating styles；provides sound absorption and enhances visual appeal；can be cut and assembled into different shapes for customizable designs High-Quality Material: Sound proof panels for walls made of 100% high-quality polyester fiber；soundproof foam panels are durable and wear-resistant Self-Adhesive: Soundproof wall panels are self-adhesive；can be installed without additional tools；easily applied to walls, doors, windows, and ceilings About Disassembly: If removal is needed, heat the acoustic wall panels with a hair dryer before peeling it off；this helps to prevent damage to the wall Wide Application: Self-adhesive acoustic panels are widely used for acoustic treatment in various spaces；including homes, offices, recording studios, live broadcasts, and conference rooms；improve the acoustic environment；enhance sound quality and comfort Coverage Area: 12 pieces cover 11.6 square feet；wall tile sound-absorbing panels adopt a 45° bevel design；leave no gaps during installation and maintain aesthetics Soundproof Wall Panels Self-adhesive Acoustic Panels 12 Pack Brick Wall Panels Sound Absorbing Panel High Density Sound Dampening Panels for Wall Decoration and Acoustic Treatment 12"×12"×0.4"