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Tim McGuire Tim McGuire Images Inc adult adults African African American African ethnicity attractive bald baldness black business busy call calling calls casual cell phone cell phones cellular close up closeup close up color communicate communicating communication communications computer computers concentrate concentrating concentration device devices digital electronic electronics focus focused focusing handsome hear hearing high tech information intent laptop laptops listen listening male males man masculine men mid adult men minorities minority mobile mobility multitask multitasking one mid adult man only one person people person phone phones portability portable portrait serious studio technologies technology telecommunication telecommunications telephone telephones use using vertical wireless work working