12 Pcs Acoustic Panels Sound Insulation Board Wall Sound Insulation Board for Acoustic Treatment Wall Decor Studio Etc

[Excellent sound insulation]: Made of 215 kg/m3 high-density environmentally friendly polyester fiber cotton our sound insulation foam has great advantages in reducing and absorbing noise. In addition the sound insulation foam panel performs well in the noise reduction test B1 class flame retardant Reaching NRC 0.95 level better than most audio panels on the...