DescriptionThese sound-absorbing panels help foster a quiet environment in smaller to medium sized rooms by reducing reverb and sound reflection. Improves vocal clarity and acoustics of your home recording studio, auditorium, vocal booths, control rooms, video games, home offices or gym with professional acoustic treatment.Features- Material: Rubber and Plastic. - Size: About 30.00X30.00X5.00cm/11.79X11.79X1.97inch. - This acoustic panel is denser, thicker, and more uniform which results in more sound absorption. - Each package comes with 12 panels, enough for you to use. - This acoustic panel can be used as acoustic cover for walls, ceilings and doors. - It can improve vocal clarity in home recording studios, video games, home offices or gyms. - It helps to create a quiet environment in small and medium-sized rooms.