They consist of sound-absorbing material hidden under acoustically transparent fabric and a structure made of perforated, non-flammable MDF. The system is characterized by a high sound absorption coefficient, which has managed to reduce echo and limit the spread of noise. The entire structure has been suspended from the ceiling at several levels and illuminated with LED strips. The installation is equipped with special controllers that make the lighting fully programmable. Dynamic lighting scenes can be defined or adjusted at any time using a tablet application.