Description: 【Innovative Acoustic Design】: The 3D hollow sound absorbing panel is carefully designed to improve acoustic quality while adding a touch of decoration to any space 【Easy Installation】: With a user friendly installation method, the 3d acoustic wall panel can be easily attached to the wall without the need for additional tools or hardware 【Quality Material】: Made of high density polyester fiber, these sound absorbing panels have excellent sound absorption performance, which can effectively reduce noise levels and improve sound in any room 【Wide Application】:Soundproof decorative panel is suitable for a variety of places, such as home theaters, recording studios, offices, or any space where sound quality is important 【Compact Size】: Each soundproofing board measures 30cmx40cm/11.81inchx15.75inch and is 2.9cm/1.14inch thick, providing wide coverage while maintaining a stylish appearance that can blend seamlessly with your existing decoration scheme Specification: Material: Polyester   Size Chart: 30cmx40cm/11.81inchx15.75inch Thick:2.9cm/1.14inch Package Includes: 1 Piece 3D Acoustic Wall Panel Note: Please allow slightly errors 1-2cm differences due to manual measurement.