▶[PROFESSIONAL SOUNDPROOF PROPERTIES]: The sound insulation board has a multi-fiber structure, and the sound is reflected countless times inside, reducing the intensity of the sound wave, thereby reducing the sound. | ▶[JUST THE RIGHT SIZE]: These acoustic foam panels come with 24 pack in the package, each tile is 1 square foot of 2-inch thick acoustic wedge; the quantity is purchased according to the sound insulation effect you want. | ▶[HIGH-QUALITY ENVIRONMENTALLY FRIENDLY MATERIALS]: The acoustic panels are made of environmentally-friendly and safe polyurethane, which is healthy, durable, so there is no need to worry about quality and health issues. | ▶[WIDELY USAGE]: Acoustic panels can help vocal lovers to obtain better recording effects, and can also make the living room and bedroom more quiet, very suitable for recording studios, vocal studios, home theaters, etc. | ☛[INSTALLATION INSTRUCTIONS]: Don't worry about product deformation caused by long-term compression. It can be placed for a period of time to return to normal, or soaked in water, and then air-dried to restore the original appearance, just easily attach it with staples, nails, screws, tacks or glue.