When it comes to the design of individual living and working spaces, wool felt is an ideal material. HEY-SIGN has an extensive range of acoustic elements for private, public and commercial spaces in its programme. These separate not only open office and living environments visually, but are also sound-absorbing and improve the room acoustics significantly. Besides the functionality, HEY-SIGN focuses on design. The acoustic pinboard, the mural design Relief, as well as the numerous products of the series line Wave convince with a measurable sound reduction and a refined design concept.