Sound Proofing Panels, Soundsbay Acoustic Wall Panels Self-Adhesive High Density Soundproofing Panels, 12 Pack Acoustic Panels for Ceiling/Door/Wall Decoration, Acoustic Treatment 12"×12"×0.4"

Didn't buy for sound proofing so can't comment on that element. Just thought it would make a nice design feature in the office and I'm happy with the results. Sticks very well to the wall (so far at least) and is easy to install. I put it on old bumpy wall paper and there were no probs sticking down. Would be quite costly if you wanted full wall coverage. But overall very happy with this product.

Nice enough panels, very easy to install and seem to make a difference even with just the 12 panels I have tried so far.

Excellent delivery - good quality and easy to fit. Can’t comment on sound-proofing yet as not been tested. But just what I have been looking for. Very pleased.

Didn’t help much for sound, but did keep glue smell especially in the heat and glue odour was bad and keep heat inside. Also lots of dust and piles comes from them. I had to rip all them off eventually.

Fab price and looks fab

Just the job for sound deadening behind the piano. Seems to have stuck well.

I got this to reduce echo in the room. I think it did help. Look very nice on the wall and you don't have to wait to install like some others. Also the inbuilt glue makes it easy. Unfortunately it's a bit expensive to cover the all room for a proper sound reduction.

Used behind kitchen cabinets to block out neighbour boiler sound - worked perfectly