YGM Acoustic Rockwool® - Set of 12 | 4' x 2' x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Deep Maroon) Acoustic Room Treatment Step 2 - Adjust/Cut Door

Step 2 - Adjust/Cut Door Seal with the LINEMAN PLIER/PLASH if you door is less that 3 feet

CORE FUNCTION - Sound Absorbing Panels for Echo & Noise Control PET felt acoustic wall panels designed to reduce echo

Reduces the Cold Air Transmission From Door Bottom Gaps Which Helps To Save Your Electricity Bill

better is soundproofing

reverb and flutter echoes and wall decoration

YGM Acoustic Rockwool® - Set of 12 | 4' x 2' x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Deep Maroon) Acoustic Room Treatment Step 2 - Adjust/Cut DoorThe 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