YGM Acoustic Rockwool® - Set of 8 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Deep Maroon) Brown Door Insulation Kit for Sliding Noise Reduction Gap Ideal for reducing noise disturbance

Ideal for reducing noise disturbance and improving speech clarity within enclosed spaces

sound diffusion and sound absorption

Use for dampening and absorbing low frequency sound waves

relaxing and comfortable sound atmosphere

heat the acoustic wall panels with a hair dryer before peeling it off；this helps to prevent damage to the wall

YGM Acoustic Rockwool® - Set of 8 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Deep Maroon) Brown Door Insulation Kit for Sliding Noise Reduction Gap Ideal for reducing noise disturbanceThe 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