[Improve Sound Quality]Controlling the ambiance or reverberant field is generally done by mounting acoustic panels on the walls or hanging them from the ceiling since sound will echo off the walls, floor without acoustic treatment. Adding AcouXtro sound absorption panels to a room can easily turn a dreadful sounding space into one that is comfortable, quite effective for communication and sound quality improvement. NRC: 0.95 (lab test) | [Decorate Rooms & Spaces]The polyester sound-absorbing panels can be cut easily with a utility knife, matching the size and shape at will, multi-color options available for free matching of different decoration styles. With 45-degree bevel, the AcouXtro acoustic panels are heat-insulating, moisturizing, flexible, tough, anti-impactive, tear resistant, good protection for wall surface | [Require No Extra Glue & Tools]No extra adhesives like heavy duty 3M adhesive taps, spray adhesive, and nails are needed to fix the 3d wall panels, AcouXtro acoustic panels are self-adhesive, just peel off the back film and stick each tile to any clean flat surface as you wish, it only costs you 10 seconds to install a sound deadening panel. Meanwhile, the 12*12*0.4 inch wall panels are easy to cut to size and shape, feel free to align them to the wall corners or door edges | [Made of Premium Material]Made of 100% high-quality flame retardant polyester, meets EN 13501-1 and ASTM E84 Class A Standards; Formaldehyde-free, comply with E0-class environmental standards; With the high density of 230kg/m³, AcouXtro acoustical panels have premium heat insulation property as well as reasonable sound-proofing performance, your health and safety are always our first priority of concern | [Apply to Multiple Places]Ideal aesthetic room decor and acoustical treament solution for professional recording studios, offices, control rooms, home studios, home theaters, home offices, rehearsal rooms, concert halls, podcasting, live stream rooms, churches, vocal booths, piano room, man caves, dog kennels, utility closets, KTVs, meeting room, conference room, living room, bedroom, dining room,home gym, kindergarten, gymnasium, hotel, restaurant, etc.