Doctor Bei's sonic electric toothbrush is different from the traditional electric brush which uses nylon brush wire. It is the first time that a soft haired brush has been applied to the electric brush. It also has an original patent for simultaneous high and low brushing wires. The layout of brushing wire adapts to Bass tooth-brushing method. It is more suitable for the sensitive and delicate mouth of Chinese people rather than that of Europeans.It has the features of high frequencyand low amplitude to clean teeth in an efficient manner without damaging the user's gums.

Zhou Ying is a senior designer who enhances user participation experience through innovation and resource optimization, transforming design innovation value into social and human care. Zhou Ying is currently focusing on the design of quality product design and service systems in the field of oral health. The products responsible for design are not only recognized by a large number of international professional design evaluation organizations, but also the social value of Zhou Ying's products designed to improve the oral health of Chinese users. Received wide market praise. Zhou Ying is happy to discover the pain points in the daily life of the user. Through design practice, balance the contradiction between resources and market, so that the meaning of design innovation becomes the carrier of universal value. This has always been the driving force of Zhou Ying’s social mission of designers.

Founded in 2016, DOCTOR BEI is an emerging millet eco-chain company focused on providing high quality oral care products to its customers. In the future, DOCTOR BEI will also expand more Internet-based oral health services to create a comfortable oral health experience for users.