Fangrui Product Details [both Aesthetics And Functionality] The Panel Has Been Specifically Developed For Those Situations Where Acoustic Absorption And Greater Visual Sophistication Are Required, Such As Office, Meeting Room, Home Office, Dining Room, And Recording Studios, Podcasting Booths, Offices, And More. By Deadening Unwanted Sounds Like Echoes And Noise, You Can Get Much Clearer Sounds. [whats The Effect] Tiles Are An Easy, Elegant Acoustic Fix For Nearly Any Space. Thanks To The High Density, The Tiles Are Great For Reducing Background Noise, Echoes, Reverberation Time(rt), And Decrease Standing Waves, Improves Speech Intelligibility, And Help Increase Sound Clarity In A Room Or Space. Self-adhesive Design - The Sound Proof Foam Panels Have Double-sided Tape Behind Them.easy To Install.just Rip Down The First Layer Of Double-sided Tape,you Can Paste In Wherever You Want. Environmentally Materials - Our Products Are Made Of Polyester Fiber Material, Which Is Environmentally And Harmless, Safe To Breathe And Touch, Safe Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin