2½ hours a day 2014 U.S. Digital Consumer Report adult spend some 34 hours per month using mobile internet Nielsen’s Digital Consumer report What's empowering the new digital consumer? according to Nielsen 2½ hours a day 2½ hours a day Nielsen’s Digital Consumer report 2½ hours a day 2½ hours a day étude Nielsen a Nielsen study 2½ hours a day Eighty-four percent Nielsen 2½ hours a day Nielsen survey 2½ hours a day