Pyramid Acoustic Foam Panels - 12x12x 2 Inch Thick Sound Dampening Studio Foam Tiles - 4 Square Feet Per Pack (2 inch thick)

These come in a package of 2, so we paid about $7.50 for each one. They arrived not squished or anything.We used drops of Gorilla Glue to attach them to 18" x 24" foam board we got from the Dollar Store, and then placed them around my mom's oxygen compressor which is as noisy as a compressor can be in one's living room. They do seem to dampen the noise well.If we wanted more we'd buy these again.

Does exactly what it says. Seems to condense the deep tones well. However, my only complaint, is their quality control. Some edges look like they were cut with free hand scissors with uneven cuts and terrible straight edges, which makes them difficult to line up together to form a even line. Definitely some minor rips, tears, and gouges here and there which make it pretty ugly from up close. If you're not a perfectionist on the looks, then this will work just fine.

Used on primary, secondary reflection points and as wall decoration, very easy to install with T-pins or command strips if you cannot put holes in your wall.

Waste of money - I could have used egg crates and it would have worked better

As I expected, good product, good value and fast shipping.

For the money, fantastic. I made a small, noise sheltering, microphone box for my bedroom studio mic with these panels.

Quality panels. No complaints.

The product quality is good. It is as advertised. It does a very good job at sound dampening. Do not expect it to do much for lower bass levels, or for any type of serious noise canceling. They do a great job for mid and high range sound.