Acoustic Panels: Made from polyurethane foam, these panels enhance sound clarity and absorb sound reflections to reduce echo and reverb. The wedge design helps control unwanted sound reflections, making them ideal for use in studios, recording studios, vocal booths, control rooms, offices, home studios, home theaters, gaming rooms, and home offices. The panels are designed to support up to 21 lb without deformation. Multiple configuration options allow for flexible positioning to achieve optimal sound quality. They improve monitoring accuracy by stabilizing o equipment and absorbing vibrations and sound frequencies, effectively reducing noise and resonance. Operating principle: Reduces vibration and low-end distortion to produce clearer sound and more accurate bass response, minimizing sympathetic resonance and improving overall sound wave clarity in studio environments. Application: Compatible with various speaker sizes, including amplifiers, subwoofers, loudspeakers, shelf speakers, and portable speakers. Effectively reduces high-frequency sound reflections and controls bass reverberation without dulling o quality. Color: Black Material: Polyurethane foam Size: 28 x 19 x 4 cm Package Contents: 2 x Speaker Sponge Pad Note: Light shooting and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.