Made from durable and recyclable materials with a fire protection rating of B1, they are safe and environmentally friendly. These acoustic panels have been designed to improve the sound properties of a room by effectively eliminating unwanted reverberation. The acoustic panels are designed with a series of through holes. As sound passes through the high-density sound-absorbing material, the air in the micro-perforations vibrates and the sound waves hit the material, which is then converted into energy and released into the air. It is an ideal material for reducing sound waves, reverberation and flutter echoes in small to medium-sized rooms. It reduces the source of sound by at least 35 decibels and provides excellent sound insulation. 3D wall panels are easy to install on any smooth, flat surface. Simply measure the dimensions of the wall and remove the protective film to install. How does it work? Effectively eliminates unwanted reverberation and improves the sound characteristics of the room... Sound-absorbing panels have many through-holes. When sound passes through the high-density sound-absorbing material, the air in the micropores vibrates and the sound waves collide with the material, which is then converted into energy and released into the air. Wide range of applications Sound-absorbing panels have a high sound-absorbing capacity and are widely used in professional radio studios, studios, control rooms, home recording studios, home theatres, rehearsal rooms, concert halls..... podcasts, live broadcast studios, vocal studios, piano rooms, karaoke rooms, conference rooms, living rooms, bedrooms, gyms, nurseries, fitness studios, hotels, restaurants and other spaces. Packing list Soundproof Panel*12 Specification Material: polyester fibre Size: 30*30cm