America SOTO technology Co., ltd established west Grenoble road 445#, Los angles California, USA. It is the research & develop enterprise for display equipment . The products include projectors, electronic whiteboard, videobooth. And involves network system integration, multimedia digital system, big screen wall system, joining together video conference system and many other products. Widely used in home theaters, military, government, education, water conservancy, electric power, space communication industry etc.