【SELF-ADHESIVE & EASY INSTALLATION】: Self-adhesive Acoustic panels make installation in 3 steps easier than the others, strong sticky, and efficient. | 【FASHIONABLE APPEARANCE】: The unique hexagon Acoustic panels adopt a beveled edge design, which can absorb unnecessary indoor echo and play a role in decorating the wall, and the panels can be painted and used by pins tacks, but notice, acoustic panels are not recommended to use for reducing outside room noise. | 【HIGH DENSITY AND ECO-FRIENDLY】: Made with 100% Polyester Fiber, and flame retardant, it is both safe to breathe in and touch, making it great for any location in the home or studio, it's safe for adults, kids, and pets! These noise-insulation panels are multi-purpose, they can be used for rehearsal rooms, concert halls, podcasting, churches, man caves, dog kennels, utility closets, and more, NRC>0.92. | 【ECO-FRIENDLY AND INDOOR USE】:The sound panels are Odorless, Non-toxic, and Formaldehyde-free. Flame retardant class: B1; Excellent acoustic treatment for on-site sound processing on the wall of a recording studio or office-suitable for recording studios, control rooms, office home studios, home entertainment theaters, vocal booths | 【 AFTER SELL WARRANTY】: We offer 24-hour stand-by professional customer service, if you have any questions about INSTALLATION and QUALITY, feel free to contact us! If you are not satisfied with our acoustic panels, please contact us first, we would provide the best solution.