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.