Size47" length x 24" width large size acoustic panels, can cover larger space of wall with 1 piece, reduce gaps between multi panels to create a beautiful effect.Sound Proofing Panel for WallsMade of polyester fiber, which has the characteristic of good sound absorption and noise reduction, corrosion resistance, non-absorbent.Special Design SurfaceThe special and decorative slotting surface design can reduce indoor reverberation, echo, standing wave and noise.Easy to InstallThe sound-dampening panels adopt self-adhesive technology, which can be pasted after tearing off the back paper, easy to use for every age.ApplicationSuitable for cinema, concert hall, gymnasium, training room, game hall, ceiling, wall, etc.