• High quality material sound foam panels. Thay maintain their sound proofing features. They only need to be taken care occasionally through dust vacuuming.
• They mitigate slap and flutter echoes, waves and reverb in all rooms. Maximum sound control can be achieved if combined with bass traps.
• The 24-pack acoustic foam sound dampening wall panels cover 24 square feet and can be applied for soundproofing on walls, doors, windows, ceilings and floors.
• Ideal to for soundproofing recording Studios, vocal booths, home entertainment theaters and control rooms | Notification: The acoustic panels are fireproof (They do not fuel a fire). They stop burning after the fire source fading.
• The product is coming compressed to reduce the shipping & overall cost. On that stage, the width per tile is about 1 inch. Please open the package and let them completely unpacked for at least 72 HOURS at room temperature to regain its original shape & size which is 12 X 12 X 2 inches. | For Indoor use only.
• The A2S/stop to shop soundproof panels! are intended to increase the acoustic absorption coefficient of the space (room), in order to reduce the reverberation time (RT) reverberation time.
• They have a high density (30kgr/m3) and thus achieve great absorption especially above 500Hz
• In the pictures you will find the manufacturer's diagram. The coefficient NRC=0.75 (Noise Reduction Coefficient) is also given, which is the average value of the absorption of the material (in relation to the frequency) and one of the best on the market. "A Noise Reduction Coefficient is an average rating of how much sound an acoustic product can absorb. (How much quieter a product can make your space.) Like a sponge absorbs water, an acoustic product absorbs sound and the NRC tells us just how much sound those products can soak up."  

 * The purpose of the panels is not sound insulation, although it achieves this to a large extent if it goes into ALL the walls, even the ceiling. However, reverberation is often heard again even after the panels have been installed. This is due to the standing waves that are almost always created in small and closed spaces. In this case, panels must be placed around the perimeter of all the walls (where possible of course) and also on the ceiling. If this is not possible, then an additional carpet/carpet should be placed on the floor, in order to avoid axial resonances in the vertical axis!