SUPERB ACOUSTIC TREATMENT: High-density and large area coverage(50 sqft) of our acoustic wall panels effectively reduce echoes, reverberations, and vibrations, resulting in clearer sound and improved listening experience,PREMIUM MATERIALS: Made of 100% polyurethane foam, our soundproof foam panels are fireproof, expandable, and aging-resistant. They are also fade-resistant, odorless, and safe to handle,EASY TO RECOVER: The sound foam panel is shipped vacuum-packed and will expand to its full height within 24-48 hours of unpackaging. For faster recovery, it can be placed in warm water and then use dryer to dry them before installation,EASY TO INSTALL: Use double-sided tape or glue to attach the sound absorbing panels where you need it (make sure the surface is wiped clean) and press firmly, or you can attach it to the wall with staples, nails, screws, tacks,WIDE APPLICATIONS: Our soundproof wall panels are versatile and can be used in recording studios, offices, concert halls, home theaters, and more. They are easy to shape and cut to size, and variations will not affect performance