YGM Acoustic Rockwool® - Set of 4 | 4' x 2' x 1.5" | Sound Absorption Panels | NRC 0.92, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Olive Green) soundproofing The surface area of this

The surface area of this product is higher than Pyramid and Wedge due to its new design

OPENING INSTRUCTION: It comes in a Vacuum Compressed Packaging

effectively reducing echo

Integrated 1-Inch Air Gap for Enhanced Absorption – Built with a rear air cavity that improves sound absorption efficiency

YGM Acoustic Rockwool® - Set of 4 | 4' x 2' x 1.5" | Sound Absorption Panels | NRC 0.92, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Olive Green) soundproofing The surface area of thisThe Professional Rockwool Acoustical Panels are Superior in sound absorption with NRC = 0. 92 providing clearer, more enjoyable sound environment. Size: 4 feet x 2 feet with 1. 5 inches of thickness. 1. 5 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