@usmile官方微博 New F1 Electric Toothbrush officially launched! Join @X玖少年团肖战DAYTOY to witness the smart oral cleaning technology #XiaoZhanusmileProtectingOralHealth#

------original text:------
@usmile官方微博 新品F1电动牙刷正式发布！与@X玖少年团肖战DAYTOY 一起见证智慧净齿科技#肖战usmile守护口腔健康#