The Strato-Stereo Acoustic ceiling panels can be either individually or in groups as a entire surface mounted ceiling panel on the ceiling. The Strato-two / stereo ceiling panels consist of an AM foam which is encased in a metal frame and acts as a sound absorber. The AM foam provides great resistance to shock, temperature and humidity adjustments. The Stratocaster two sound absorbers – components with a specific, patented “Aeria” textile sheath, the robust texture of the filing reduces threat covered, but is also interchangeable. Check out raum AKUSTIKS for more info.