Pan Yongxin, the director of The Free Trade Zone gathered gathered visited SWD-IOSONO Studio on 24th of March. The engineer of SWD gave a vivid introduction of the configuration of IOSONO 3D sound studio. After experiencing IOSONO 3D sound in the studio, he marveled, ”I have prepared the sound  would be quite different but when I heard it, I still feel quite shocked and surprised. ”