Beijing Zhongkehaixun Digital S&T Co., Ltd. engages in the research and manufacture of naval underwater warfare equipment, particularly anti-submarine warfare system equipment, and sales of sonar related products. It also develops and promotes acoustic technology. The company was founded by Wen Li Zhao, Xin Xin Feng, Jun Hua Xu, and Yi Ge on July 18, 2005 and is headquartered in Beijing, China.