Features: 1.These durable sound panels are excellent at absorbing sound energy, reducing reverb, echo and mid high frequency noise. 2.These sound insulation panels are ideal for sound treatment and decoration on ceiling and wall. 3.Pefect for recording studios, gaming room, home theater, home studio, office, vocal booth, podcast and more. 4.No special tools or materials are required for installation, and you don't need to laboriously send it to the place where you need it. 5.Just use nails, spray glue or double?sided tape (not included) to easily fix the sound?proof foam board. 6.Made of polyester fiber material, have the great advantage of reducing and absorbing noise, safe to breathe and touch. 7.Easy to shape and cut to size, altering won't affect performance, excellent performance in the noise reduction test. specification:Item Type: Acoustic Absorption Panel Material: Polyester fiber Product Size: Approx. 30 x 30 x 0.9cm / 11.8 x 11.8 x 0.4in PackageList:6 x Acoustic Absorption Panel Note1. The above dimension is manually measured, there is an error of 1?3 size, the actual size may be slightly different from the above dimensions. 2. Due to lighting effects, display settings, etc. The color of the picture and the actual product may be slightly different.