TroyStudio Thick Acoustic Foam Panels, 12 X 12 X 3 Inch 12 Pcs Broadband Sound Absorbing Foam, Dense Soundproof Padding Tile, Recording Studio Foam Absorber, Groove Decorative 3D Wall Ceiling Panel

Seems to work as advertised. Delivered in vacuum bag, but all panels expand within hours, with no problem or odor. They did deaden the sound for my application which was a "soundproof" box for a noisy device.

Had to run under hot water to get most pieces to expand but once they did they worked well. Nice combination of absorption and diffusion. Great value for the money.

Man this treatment treats reflections so good, you’re gonna say Whoa! Hey! Why you treat reflections so good?!

I use this for my voice mask and ot definitely lowers the sound of hearing me while speaking

Virtually no sound absorption at all...badly cut with irregular shapes and will not unfold....I really can't even give it a 1 since you lose all the money you paid for with no results.

These panels are firmer than most and sharply cut to deliver precise corners. They have held their shape, dampen noise, and look aesthetically pleasing. I'm happy with them.

My only issue with these is that they really are hard to stick onto any adhesive that is not heavy duty/ permanent. I am opting for hooks to keep them up so I don’t damage my walls.

cheap, portable solution...use pin nail to mount them and you can move them very easily.

These tiles claim to be for soundproofing. I didn't expect it to completely soundproof my laundry room, but I did expect it to make at least a difference, especially at the price they charge. The fact that their is no adhesive backing is also just cheap. Like I said, if you're just looking to stop echos in a studio, these may work perfectly for you, but as a soundproofing product (which they themselves claim to be) it's a massive waste of money