Opening day of Mobile World Congress in BarcelonaPeople chat outside the L ' Hospitalet de Llobregat congress center during the opening day of the Mobile World Congress ( MWC ) in Barcelona , Spain , 27 February 2017 . More than 101 , 000 professionals and 2 , 200 exhibitiors attend the congress said to be the largest of its kind for the mobile industry from 27 February to 02 March which is expected to be visited by tens of thousands of visitors . EPA / TONI ALBIR 대박 난 흥부 가 즐겨 찾 는 # 흥 ( 클릭 ! )