Koawensa 12 Pack, Wall Acoustic Panels, 12Inch X 12Inch X 1Inch Odorless and Quick Recovery Sound Deadening Wall Panels (Black)

[Better Acoustical Treatment]The triangular grooves structure of soundproofing foam is better for noise absorption. These soundproof wall panels are suited to placing on sonically reflective surfaces to act as sound absorbers, help to reduce echoes, background noise, standing waves reverberation time, and improve sound quality. [Extensive Application]These acoustic foam panels are suitable for acoustical treatment. Use perfectly in recording studios, offices, home theaters, rehearsal rooms, basements, and so on. [Easy To Install]acoustic foam can be recovered to normal size in half an hour, doesn't need to wait for 2-3 days, quick-recovery than others. KINDLY NOTE: Clean the wall to make the wall flatter before you install the noise cancelling foam, you can use adhesive , push pins, strong double-sided tape, or strips (not included) to install the foam. [Eco-friendly Material]These acoustic panels sound absorbing are made of high-density polyurethane material. with strong fire resistance and good air permeability, no smell, and safe for use in different areas.