가격이 좀 싼데 여기 찐일까??

http://m.11st.co.kr/MW/Product/productBasicInfo.tmall?prdNo=2594677945&NaPm=ct=k4b52o8g|ci=b5b22dbbe22a018c548339c41944bc0a23fc0c8b|tr=slct|sn=17703|hk=692109b503fdaa972516fb76492eebfd4d7cc2f1&utm_term=&utm_campaign=%B3%D7%C0%CC%B9%F6m_%B0%A1%B0%DD%BA%F1%B1%B3+%B1%E2%BA%BB&utm_source=%B3%D7%C0%CC%B9%F6_M_PCS&utm_medium=%B0%A1%B0%DD%BA%F1%B1%B3

딴데 70인데 여기만 50이네 문의내역보면 정품이라고 물어볼때 해외정품이라고만 하는데 짭인가??