Beauty, Personal Care and Cosmetic Products Design Dr.Bei S7 Sonic Electric Toothbrush by DR.BEI Inspired by octopus's tentacles, the product can be flexibly controlled to penetrate into various tooth corners, S7 has pioneered a 4D elastic brush head, which can bend elastically to deeply clean teeth while protecting consumers' sensitive gums. Applying the step-less acceleration principle of racing cars to the electric toothbrush, users can adjust the power of toothbrush step-lessly to meet various oral cleaning requirements. The simple and pure geometry matched with the glass panel integrates the interactive interface as one, realizing the perfect unity of function and form.