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

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

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.

I had to use tacks to hold up. there was NO adhesive at all yet the review asked me to rate the adhesive... Guessing it is missing?

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.

These did not soundproof for my needs at all. I had to get a refund

When it comes to acoustic panels, thicker is better, so these 3" thick panels will likely perform slightly better then the 1-2" panels that are typical at this price point. Having worked with these for a while now, I can confirm that this is the case - they provide slightly better sound dampening against echo/reflection.Whenever I review acoustic panels I always add in a public service announcement - these will not soundproof a room. Period. They are not designed for that purpose. They can be used as *part* of a soundproofing solution but won't get the job done on their own. That's because these panels are chiefly designed to combat high- to mid-range sounds as they bounce off hard surfaces (like walls and ceilings).That said, these panels do fairly well at the job for which they are designed and I do recommend them for that purpose. The design of them looks pretty cool on the wall - especially when grouped together. They are3 easy to install and are cut consistently creating a seamless covering is not overly difficult.

This design absorbs and diffuses better than pyramid shaped foam of any thickness. Period .

Out the plastic these ones smelt a bit worse. Probably from being so big. Took a bit for the smeel to go away. These also have a funky design I hadn't seen before. I like it and I get what they were going for. I'm not sure these work as intended tho. But they do work as far as I can tell. Screaming into them can help you know how effective they can be and at what distance.