Effective Acoustic Treatment - The acoustic foam panels are designed with a grooved surface, filled with small gaps and semi-open structures, which can absorb a large amount of incoming sound wave energy. This helps to reduce and absorb unwanted echoes, waves, reverberations, and tremor echoes, resulting in better recording results.,Wide Application - Earppie Acoustic Foam Panels are suitable for on-site sound treatment on studio or office walls, ideal for recording studios, home theaters, control rooms, live streaming rooms/home offices, etc. The size can be flexibly cut to fit your needs, and they can also serve as wall decorations.,Quick Installation - The self-adhesive acoustic foam panels come with adhesive on the back. Just peel off the protective film and stick them to the surface of smooth objects such as walls, ceilings, door panels, etc. Before sticking, please wipe the surface of the object to remove dust.,Quick Recovery - Product Dimensions: 12''*12''*2'', Material: Polyurethane Foam, Flame Retardant, can be flexibly cut into desired sizes. What to do after receiving the package: Open the vacuum packaging and place the acoustic foam in a well-ventilated area for about 24-48 hours.,After-sales Service - To ensure quality, each of our acoustic foam panels undergoes rigorous quality control before leaving the factory. If you have any questions about our acoustic foam, please feel free to contact us, and we will reply to you within 24 hours.