DR.BEI Sonic Electric Toothbrush S7 innovative 4D elastic soft rubber brush head. The step-less power adjustment provides brushing strength for each mode, to meet different needs. Starting with the initial functional state, the design adopts the minimalism shape cutting. For the first time, the glass panel is applied to the electric toothbrush, and the rainbow bar light opens a new way of user interaction of the electric toothbrush. With the application of multiple pioneering technologies,S7 redefines the imaginative boundaries of visual language and design for electric toothbrush.