[11/19/2017] Philips Sonicare DiamondClean Smart 9300 系列電動牙刷 (HX9903/11)，Philips Sonicare DiamondClean Smart Electric, Rechargeable toothbrush for Complete Oral Care – 9300 Series, Black, HX9903/11，全新，特價$166.50，使用產品價格下方的$30 off coupon之後，只要$136.50 USD。Prime境內免運費。哪裡買: amazon。