30X30cm Grey 12 Sheets Grooved Sound-absorbing Cotton Sound Insulation Cotton Plate Wall Noise Reduction Sponge For Ktv Recording Studio Drum Room Wall (grey) DT4185Description This is a sound absorbing cotton, giving you a quiet space, greatly improve the comfort of staying. Soundproof engineering not only soundproof, but also a great inexpensive way to clear your room of low end bass nodes. Features - Color: Grey. - Material: PU. - Size: About 30x30x2.5cm/11.81x11.81x0.98inch. - Pyramid provides moderate sound control on walls or ceilings, especially ones not parallel to the floor. - Best for when absolute sound deadening is not required, but moderate deadening is desired. - Great for spot treating sound on walls in your studio or office, for use in recording studios, control rooms, offices home studios, home entertainment theaters. - Strong flame retardancy, high elasticity and no deformation. - For professional acoustic control, sound dampening, acoustic treatment, noise reduction to reduce waves, reverb and flutter echoes in smaller to medium sized rooms.