Yaoxin Electronic Technology ( Shanghai ) Co., Ltd. is the largest manufacture in China, specialized in oral and nasal cleaning products. The company is located in Shanghai Pudong Jinqiao Export Processing Zone, near Shanghai Free Trade Zone. The waterpulse dental flosser series, combining the microcircuit design technology and the pulse pressure, are the multi-functional oral cleaning products developed to meet increasing oral health care needs. In additional to the Chinese market, the products are exported to multiple countries and regions worldwide.