Acoustic Panels 12-Pack Soundproof Wall Panels 14''X13''X0.4'' Sound Panels High Density Sound Dampening Panels - [Deep Black Hexagon]

I am unsure of their actual acoustic performance as I'm too broke to afford the equipment needed to test it, but from my perception it does quiet down the echoes from the walls considerably compared to the walls being bare. The main plus of these in my opinion is the looks, symmetrical hexagon patterns are my thing and these look great... that is if you got lucky with the shipping and packaging. They are plastic wrapped with a cardstock label wrapped around them, leaving the corners exposed. I found a lot of mine had dulled/dented corners, but it wasn't enough for me to consider returning them, your milage may vary. A bit of advice, I used that wall mounting putty stuff and it works way better than adhesives and the like if you have textured walls.

I may have gone a little overboard but it looks good. I used small nails to apply them because it's less damage to repair than adhesive. They go up fast and do the job. And they cut easy with a razor blade if you need to shape them at all. I feel like the price point is a little high but I think I bought more than is necessary.

I'm not sure about the ability of these to absorb sound and they may not work the way I have them set up BUT they are really good quality and look really cool on the wall.

The felt quality is nice and they were easy to work with when I needed to trim them to fit around the corner. They fit nicely with my lighting and I am very happy with the final product.