Arrowzoom Soundproof Door Kit PRO - 20pcs Black, High-Density Foam, Self-Adhesive, Sound Absorbing Panels 40dB Noise Reduction, 12x12x0.78in Sound Proof Panels for Door 1244

This does not work, does not do what it is meant for. The installation is easy but when they ask you to return it, it is impossible to get it unglued. Sound goes through it like if nothing was there.

Great adhesive. Stack well together and look good. Not easy to cut pieces neatly for smaller spaces.

$200 for this?? I've tried various soundproofing products. The most important factors are a very high density, rubber or foam material that will absorb the sound. They need to have some physical weight and thickness to them. What I received as this product was a dozen really thin, super light pieces of foam. I was disappointed the second I picked up the box which weighed almost nothing. A complete waste of time. Not worth $20 much less $200. I'll keep researching for a better option.

Easy to install and deadens the sound well. Installed it in a makeshift sound studio. Doesn't completely eliminate sounds, but works well on dampening the vibrations of it. Definitely helps with recording sessions.

Excellent cost / performance ratio. They require a separate adhesive, but they work very well with double-sided tape. Very good sound absorbance.

It’s good for the cheap price but if you are looking for something professional, so you need to buy the thicker ones. Second problem: not all sheets got back to the original form even following the instructions. I solved the problem putting them in the washing machine, wash them normally and dry under the sun. Now they are all back to the original form.

Some pieces are not sticking to the double adhesive tape so I have to find a way around that. It’s totally the walls I’m using in Japan and the wallpaper they have. Otherwise they seem to be keeping the volume down more. My kids can be loud but so far it’s been ok

1.8畳程の自作防音室に使用しました。 壁の総面積の30%を超えたあたりから部屋鳴りが減少しはじめます。 恐らく狭い空間での吸音であれば総面積の80%以上貼ればそれなりの効果が期待できるのではないでしょうか。 広い空間(6畳以上)では効果はあまり期待しない方が良さそうです。 また微妙に寸法が違うので隙間なく貼り付けるのは難しいと思われます。 ただ一つ確実なのは、付属の両面テープは使用しないことを強くお勧めします。 裁断の際にはベト付き、指にくっついてそこから破れる程に品質が粗悪です。 また、施工から1日以上貼り付いていたのは全体の1割にも満たず、1週間経つ頃にはほぼ全て剥がれ落ちました。