4-Pack Acoustic Soundproof Wall Panels (48x12x0.4in) — Noise-Reducing Sound Absorbers for Bedroom & Office

Set of four acoustic wall panels sized 48x12x0.4in, engineered to reduce noise and tame echoes in bedrooms, offices, and other living spaces. Each panel is made from high-density polyester fiber with a 230kg/m³ density, providing durable construction and strong sound absorption. Acoustic performance is rated at an NRC of 0.95 for noticeable reduction of reverberation and clearer audio. A precision 0.4mm groove depth in the design increases sound absorption by 30-40% versus many competing panels on the market. Installation is simple and tool-free thanks to the self-adhesive backing, which sticks securely without damaging walls. The panels are manufactured from CE certified, odorless material and require only a damp cloth for easy cleaning.