贝医生声波电动牙刷S7首创4D弹性软胶刷头，能够让弹性刷头上的超细软毛多角度深入清洁牙齿缝隙，并能通过弹性接触防止用力过猛造成牙龈损伤。首创无级动力调节专利功能，能够为每种刷牙模式提供由高到低任意一种刷牙力度，适合用户不同的口腔健康需求。多项首创技术的运用，让贝医生声波电动牙刷S7带来了显著的用户体验改善，重新定义了电动牙刷的视觉语言和设计的想象边界。

     The S7 innovative 4D elastic soft rubber brush head deeply reaches and cleans teeth gaps at multiple angles with its superfine soft hair on the elastic brush head. The elastic touch helps to prevent gingiva damage caused by excessive force. The pioneering stepless power adjustment function provides any brushing strength from high to low for each brushing mode, to meet the different oral health needs of users. With the application of multiple pioneering technologies, S7 brings a significant improvement of user experience and redefines the imaginative boundaries of visual language and design for electric toothbrushes.