Item Type: Acoustic Absorption Panel Material: Polyester fiber Product Size: Approx. 30 x 30 x 0.9cm / 11.8 x 11.8 x 0.4in1These durable sound panels are excellent at absorbing sound energy, reducing reverb, echo and mid high frequency noise. 2These sound insulation panels are ideal for sound treatment and decoration on ceiling and wall. 3Pefect for recording studios, gaming room, home theater, home studio, office, vocal booth, podcast and more. 4No special tools or materials are required for installation, and you don't need to laboriously send it to the place where you need it. 5Just use nails, spray glue or double?sided tape (not included) to easily fix the sound?proof foam board. 6Made of polyester fiber material, have the great advantage of reducing and absorbing noise, safe to breathe and touch. 7Easy to shape and cut to size, altering won't affect performance, excellent performance in the noise reduction test. 6 xAcoustic Absorption Panel