[REDUCE NOISE]: Our 3D acoustically designed 7 inch sound proofing padding for wall/soundproof wall panels help break up sound waves providing the ideal level of moderate soundproofing control on walls or ceilings. [REDUCE REVERB]: At 50/lbs per cubic yard, these sound dampening panels effectively absorb unwanted flutter echoes. Made up of non-toxic environmentally friendly polyurethane soundproof foam padding at 50/lbs per cubic yard. [EXPANDS QUICKLY]: Our sound foam acoustic panels come compressed in a vacuum package and quickly recover to normal size, either by placing in a well ventilated place for about 24-48 hours or soaking the sound proof foam panels in water for one minute the [PLACE ANYWHERE]: Great for spot treating sound on walls in your studio or office - For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices. Easy to shape and cut to size, altering wont affect performance. [AFTER SER