and high quality Improve vocal clarity,Flutter echoes, Reverberation, issues, Standing waves Mid to High Waterproof, anti- moisture, good air permeability,Anywhere to help block sound and prevent echoes inside the room These Wall Panels provide strong noise reduction, Good for studios, recording studios, vocal booths, control rooms Use: Perfect for use on corner walls, corner ceilings, etc. Application: Family noise control (walls, pipes, ceilings, etc.).Workplace noise control (light walls, partitions, conference rooms, etc.).Entertainment noise control (KTV rooms, walls, ceilings, floors, etc.).Industrial noise control (factory walls, roofs, equipment, doors, control room, etc.) Material: Polyurethane foam Color: Black Profile Shape: Pyramid Size: 25*25*5cm Quantity: 12 Pcs Package Contents: 12 * Acoustic foam Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.