Superior Noise Reduction: Minimize indoor echo and external noise with these high-density (1700g/m²)100% polyester fiber soundproofing panels. Perfect for creating an optimal recording environment, with 0.9 NRC rating, these panels reduce some annoyance noise frequencies by up to 90% and reduce echoes by 97%. Say goodbye to noisy distractions and focus on your work. | Safe to Use: Our sound dampening panels are made from 100% polyester fiber, providing waterproof, odorless properties that make them a safe and long-lasting solution. Invest in a soundproofing solution you can trust. | Customize Your Space: TONOR acoustic panels designed with a hexagonal honeycomb shape that doubles as a stylish decoration. Invest in our top-performing soundproof wall panels, and experience the perfect blend of style and functionality. | Easy to Install: With self-adhesive backing, you won't need to purchase glue or other tools. Just peel off the protective film, and you'll be able to stick the panel wherever you want, extremely easy to install. Note: These panels can be used on smooth and dry surfaces, such as wood, glass, painted walls, metal, marble and tiles. | Wide Applications: TONOR ultimate sound absorbing panel are perfect for eliminating echo in any room, whether it be in recording studios, gaming rooms, home offices, home theaters or in living rooms, bedrooms. With effortless installation on smooth walls, floors, doors or even ceilings, enjoy instant noise-cancellation and a quiet environment.