The sound absorbing panels to arrange in a different way for different uses. Easy to install, dismantle and reassemble. The only thing that never changes is how effectively ECHO absorbs sound. Each panel has double-face colors: simply turn it over to give the room a new vibe. This absorber has been designed to be extremely versatile and can be combined in different ways: it can be used individually or composed of a number of panels. The results are ECHO Wall, ECHO Cloud, ECHO Tree and ECHO Palm.