Sound Panels, Sound Absorbing Panel, Soundproofing Isolation Treatment For Walls 3D ACOUSTIC DESIGN: Our 2 inches soundproof wall panels/sound proofing padding for wall provides moderate sound control on walls or ceilings. Perfect for individuals to reduce and absorb unwanted echoes, waves, reverb and flutter echoes. ENVIRONMENTAL PROTECTION: Made up of environmentally friendly polyurethane sound foam padding at 50/lbs per cubic yard, the acoustic panels not only have effective sound absorption characteristics, but also will not cause any harm to our body. QUICKLY RECOVER TO NORMAL SIZE: Open the Vacuum package, put the sound proof foam panels in a ventilated place for about 24-48 hours. Another method is soaking the soundproof foam in water for one minute then wring the foam out water, use air dry it or use a hair dryer. You can also let them simmer under the sun as well! WIDE USE: Great for spot treating sound on walls in your studio or office - Our sound dampening panels are for use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices. Easy to shape and cut to size, altering won?t affect performance. AFTER SERVICE WARRANTY: Our US based customer service means that you can trust that if you?re not satisfied for any reason, you can get a hassle-free refund or replacement.