YGM Acoustic Rockwool® - Set of 2 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M³ Density | Room Isolation & Acoustical Soundproofing (Warm Beige) EPDM and reflected noise inside rooms

and reflected noise inside rooms

and unwanted reflections for improved room acoustics

It may look thin or not as expected in first look but Please follow the "How to restore Vacuum Compressed Packaging" instructions given in the 3rd Image of this product or the instruction pamphlet that you will find inside the package

The groves of Turbo acoustic foam trap any reflective sound which tries to escape

STC > 35 DB certified by ARAI

YGM Acoustic Rockwool® - Set of 2 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M³ Density | Room Isolation & Acoustical Soundproofing (Warm Beige) EPDM and reflected noise inside roomsThe Professional Rockwool Acoustical Panels are Superior in sound absorption with NRC = 1 providing clearer, more enjoyable sound environment. 3 Inch Thick High Density Acoustic Core Extra depth provides superior low frequency absorption, effectively reducing echo, reverberation, and mid bass buildup for clearer speech and tighter, more controlled sound. Integrated 1 Inch Air Gap for Enhanced Absorption Built with a rear air cavity that improves sound