Opening day of Mobile World Congress in BarcelonaCEO and founder of SoftBank Mobile , Masayoshi Son , delivers a speech during the opening day of the Mobile World Congress ( MWC ) at the L ' Hospitalet de Llobregat congress center , in Barcelona , northeastern 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 . EPA / ALBERTO ESTEVEZ 대박 난 흥부 가 즐겨 찾 는 # 흥 ( 클릭 ! )