[Excellent Insulation Sound]: 300 lbs per cubic meter, better sound insulation than insulation foam! Sound insulation, fireproof, odorless, anti-slip, anti-corrosion and anti-fading. Fireproof Rating: B1-Perform for sound processing site on recording studio walls or offices, suitable for recording studios, control rooms, home office studios, home entertainment theaters, and home offices. [Fashion]: This unique hexagonal sound insulation adopts a chamfered edge design, which can not only absorb unnecessary echoes, but also play a role in the decoration of the wall surface. [Easy Installation]: Both general adhesive spray and double double-sided tape can be used. Simply hold adhesive spray or double sided tape (not included) on the back of each panel and hold it in position. [Wide Application]: Very suitable for on-site sound treatment on the wall of studio or office-used in recording studio, control room, home office studio, theater home entertainment, home office. Easy to shape and cut, the modification will not affect the performance. Or use it on the ceiling, behind the TV, or under the carpet! [Improve Acoustic Quality]: These sound insulation panels are multifunctional and can be used in professional studios, rehearsal rooms, concert halls, podcasts, churches, home theaters, vocal kiosks, home studios, offices, private men's rooms and kennels, closets