[12 Pack Sound Absorbing Tiles] Size - 12 X 12 X 2 inches, High NRC - 0.75, Coverage - 12 square feet, Density - 20kg/m3, Material - polyurethane, Design - Periodic groove structure, Fire Rating - California Technical Bulletin 117-2013, Eco-friendly, Non-toxic [Sound Absorption & Noise Cancelling] The NRC(noise reduction coefficient) is 0.75 which means 75% of the sound is being absorption and cancel. These sound proofing dividers are meant for sound absorbing and noise reduction, they'll take out some of the higher frequency reflections in your room and delete back echoes to improve the quality of the sound, make voice and sound clear [Easy to Cut & Install] Soft and flexible sound barrier panels are easy to cut into your desired shape. If you perform permanent installations, you can use spray adhesive, this way is also more durable. If you’re concerned about damaging paint or walls, you could put contact paper on the way first and glue the sound insulation foam to that so it’s easier to come off. Or use pins. [Wide Range of Application] These sound isolation foam panels can be used not only in music recording studios, control rooms, office home studios, home entertainment theaters, home offices as acoustic treatment, but also in air furnace, fridge, laundry room, HVAC closet as sound baffle [Good Expansion Effect] The sound blocker boards are delivered in a vacuum package and can be returned to its original shape by washing and drying (this method has the best expansion effect) or natural expansion method (this method is the fastest and easiest). Please note: Double tape/strips or glue are not included in package
