12 Pcs Acoustic Panels,Self-adhesive Sound Dampening Panels, 12 X 10.5 X 0.4 In Sound Proof Foam Panels,High Density Sound Proofing Padding for Wall, Acoustic Treatment for Studio, Home (grey)

These look great, but none of the panels had working adhesive. They had two flaps of removable paper which overlapped, and the first layer took off the second flaps adhesive since they were overlapped. I tried to just peel the adhesive off the removable paper and put it onto the panel but it wouldn't come off. Definitely will update review if I ever hear anything from the company, but really bummed out since these were going to help me start streaming as soon as they came in...guess I'll have to wait another week if they even see this review and make things right. Really disappointed!

I’ve been looking for panels to soundproof my bedroom with for a while. I tried all the different foam wedge panels (all garbage) and I was beginning to despair of any hope of containing the noise in my room. On a whim, I decided to try these self-adhesive decorative sound dampening panels which I’ve been seeing a lot on Amazon. I bought this 12-pack and when they arrived, I immediately noticed something: when holding one of these panels at arms-length and speaking, the sound is noticeably quieter. Specifically, there is no ring or echo like you would get normally (in any room). The sound starts, travels to the panel, and stops. It does not bounce back or go through. As an added bonus, they are self-adhesive, meaning you don’t have to buy adhesive strips separately and struggle with the panels not staying stuck to the wall. Because the entire back of the panels is sticky and the adhesive is strong enough to hold the panels up, you can just stick them on the wall easily and you don’t have to worry about it falling off the moment you turn your back to it. The only issue with it that I can think of is that I don’t really prefer the sort of dirty-white color of the design. I would prefer fully white. That said, though, if it was fully white, it wouldn’t really be a “decorative” panel in a room with white walls, so I can understand where the designers were aiming.Conclusion: These panels are much better than any wedge foam or triangular foam panels that I’ve tried and this is definitely the route to choose if you want actual sound dampening.