Acoustic series Welle (Wave) optically separates individual areas and protects them acoustically. The 3mm-thick felt made from 100% pure new wool is arranged in a wave pattern, which intensifies the sound-absorbing effect. The frames are almost completely covered with felt and therefore are hardly visible. The materiality of the felt stays in the foreground. The series consists of straight and curved room dividers, tables, and suspended and wall modules in upright, landscape and square formats. When combining the different Welle (Wave) elements, HEY-SIGN offers an immense variety of ways to separate open office and living environments individually and effectively.