Acoustic panels: Cotton sound insulation increases sound clarity and absorbs the sound field, absorbing the first reflected sound. Wedge size, designed to hold up to 21 pounds without changing shape. Ideal for echo cancellation, such as studios, recording studios, vocal booths, control rooms, offices, home studios, home entertainment, game rooms, I Home Offices.mo enjoy pleasant sound by effectively controlling unwanted reverberation and echo. Designed with multiple configurations, allowing you to move your isolation monitor pads into a versatile array of angles for the best sound quality. Improve the accuracy of the whole monitoring system by stabilizing and absorbing audio frequencies, do a good job at noise and vibration suppression. Working principle: produce clearer sound by reducing vibration and low-end distortion. It can produce more accurate bass, eliminating sympathetic resonance in the room, improve the clarity of the sound wave of the studio display. Scope of application: can accommodate many different sizes of monitors, eliminate most of the unwanted levels of high-frequency sound waves, stop bass reverberation without tarnishing the sound for amplifiers, subwoofers, speakers, bookshelf speakers, portable speakers, etc. Color: BlackMaterial: Polyurethane FoamSize: 28x19x4cmPackage Contents: 2 x Speaker Sealing SpongeOnly the above package content, other products are not included. Remark: