The felt manufacturer HEY-SIGN, founded in 1999, is a specialist for innovative interior design products that also have a positive effect on a room’s acoustics, using home accessories and wall elements made of felt. ‘Made in Germany’ and, upon request, made-to-measure HEY-SIGN products stand for outstanding design quality. Large office spaces and living areas are indeed visually appeal- ing, but often have a problem with acoustics. HEY-SIGN products – room dividers, carpets, lamps and furniture made of wool felt – are naturally sound-absorbing and have climate-regulating facilities. This allows for designing rooms not only visually, but also acoustically. The wall element RELIEF, for example, combines five basic motifs with its counterparts that can be arranged in endless, creative varieties.