[IMPROVE ACOUSTIC QUALITY]These noise-insulation sound proofing panels are multi- and help to absorb echoes and noise from your surroundings to help improve sound quality and increase privacy. They can be used for home studios,bedroom,living room,children's room,offices, audio recording, home theaters, concert , rehearsal rooms and more. [EASY TO CUTTING AND INSTALL]Easy to cut with a sharp knife, You could create different styles of decorative wall art in your favorite space! And the absorbing sound panels set comes with strong tape no additional purchase, You can easily glue the noise reduction panels to the wall without the need for any tools. [ELEVATE YOUR HOME DECOR]Our sound proofing padding doubles up as decorative wall art, for noise deadening, dampening, acoustic insulation, reduction, reverb diffuser, and other sound-absorbing. The starry colors help to transform your room into a dream space and improve sound quality at the same time. [ECO-FRIENDLY AND HIGH DENSITY]It is safe for adults, kids and pets! Excellent at absorbing unwanted sounds and reducing echoes. Enhance acoustic quality in a room like a recording studio. If you are mixing in a studio, you must reduce the ambient sound. Unnecessary noise during recording will it. The sound-absorbing board can absorb the sound produced by low frequency, middle frequency and high frequency, which is very suitable for recording. [Good sound absorption characteristics] Made from 215kg/m3 high density polyester fiber cotton, our soundproof wall panels do well in reducing noise, eliminating sound impurities and improving speech intelligibility. We on using high quality soundproofing material to it's flame retardant, odorless, corrosion resistant, and fade resistant. Furthermore, the acoustic foam panels achieve of noise reduction coefficient: 0.92 and absorption coefficient: 0.8! Colour: blue Material: polyester fiber cotton Size: side length about 11cm Package Contents: 12 * Soundproofing Foam Only the above package content, other products are not included. Note: Light 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.