12 Pack Self-Adhesive Soundproof Wall Panels, 12 x 12 x 0.47 In Sound Proof Foam Panels for Walls, 1.2lb/ft³ High Density, Thicker 0.47in, Acoustic Panels, Noise Dampening Panels for Home Gray

It has helped with reducing sound of some my appliances. The stick on is super convent.

I bought these panels to help sound-proof a small, casual podcast space in my home office. The room isn't huge, and these panels covered a decent amount of wall space behind the chairs. The panels were very easy to install. They are self-adhesive, and all I had to do was peel off the backing and stick them to the wall. No need for nails or screws. I wouldn't say these panels completely soundproofed the room by themselves, but they did noticeably reduce the echo. The real strength is how awesome these look! So, combined with some more standard foam panels for other areas out of sight, these panels really help to elevate the look that you may be going for. The panels seem well-made. The foam is fairly firm and doesn't seem like it would easily get damaged. If you're looking for an easy-to-install solution to reduce some echo in a small room, these panels are a good option. They are relatively affordable, easy to use, and most importantly, look awesome!

Great Job will use again on a larger job

These panels did a lot of the heavy lifting on the aesthetic side of making a “music studio” for my husband in the basement. They look great! While I’m no expert in the science of audio dampening, I was listening to music as I put them up and noticed an immediate difference in the sound quality in the space— significantly less echo and a much cleaner sound on the whole. Probably overkill how many I put up, but they just looked so awesome I wanted to fill in the whole corner.

I can’t speak to the soundproof aspect of these as we bought these to put under/around our dart board to help reduce holes in the wall. But it works perfectly for that - they are thick but soft and aesthetically the pattern looks awesome on the wall!