Upgrade Self-Adhesive Design: Our art acoustic panels come with self-adhesive, which makes operation easier and reduces installation costs. Perfect Decor Choice: Decorative acoustic panels is perfect choice for recording studio, home theater, office, living room, vocal booths & more. Add some aesthetics to your acoustic space and take the boredom out of it. Remarkable Acoustic Performance: The acoustic panel covers a larger area(23.25 square feet) and has more obvious noise reduction effect(NRC > 0.95;absorption coefficient: 0.8), great at cancelling room reverb/ echo/ standing wave/ noise Premiun Quality Material: Size - 23.6 X 23.6 X 0.48 inches, 6 pack acoustic panels are made of 100% polyester fiber, high-density, flame retardant, odorless. Better sound insulation effect than sound proof foam. Warm After-Sale Service: If you have any adobut about our acoustic art, please feel free to contact us. We provide 24/h customer service and 100% refund or replacement.