[Easy to Install] Self-adhesive design, with adhesive on the back, easy to install on walls, ceilings, and walls. Suitable for various smooth surfaces. You don't need to prepare extra glue or tools to attach it. [Both Aesthetics and Functionality] The panel has been developed specifically for situations where sound absorption and greater visual sophistication are required, such as offices, meeting rooms, home offices, dining rooms, and recording studios, podcast booths, offices, and more. By dampening unwanted sounds like echo and noise, you can achieve a much clearer sound. [What effect does it have] Tiles are a simple, elegant acoustic solution for almost any space. Thanks to their high density, tiles are perfect for reducing background noise, echo, reverberation time (RT), and reducing standing waves, improving speech intelligibility, and helping to increase sound clarity in a room or space. [Specification] High density - 200 kg/m3; Dimensions - 30 x 30 x 0.9 cm, pack of 12, covers 1.1 square meters; Weight - 1.5 kg for 12 pieces; [Why acoustics matter] It's no surprise that excessive noise and poor acoustics can have a negative impact on productivity, communication, and concentration. To solve this problem, choose the right amount of tiles and wall coverings to create a suitable and comfortable acoustic environment for you, your colleagues, and your family. Color: White Material: Polyurethane Size: 30 x 30 x 1 cm Package contents: 12 x Acoustic foam panels 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 to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.