Weight Do you want to ask "Who is the founder of Wan Xin Repeater"? Cao Zhong. According to Zhongguancun online website, Wan Xin Repeater is a well-known brand of China Education Electronics, and its founder is Cao Zhong. Products cover repeater, early education machine, electronic dictionary digital media player and other series, and it is one of the standard setters in repeater industry.