ihocon: Philips Sonicare HX6212/04 2 Series 牙菌斑控制電動牙刷 Plaque Control Rechargeable ToothbrushAmazon 現在 Philips Sonicare HX6212/04 2 Series 牙菌斑控制電動牙刷 Plaque Control Rechargeable Toothbrush 原價 $69.99, 特價 $39.95, 在價格的下方有個 $10 Off coupon (需先 sign in Amazon account), 按 “Click Coupon”, 可再省 $10, 最後變成 $29.95, 節省 $40.04(57% Off), 免運費!!