speakerphone. drawing

advertisement alarm alert amplification amplifier ancient announce attention audible audio banner broadcast bullhorn cartoon communicate concept device dictate doodle drawing electric engraving equipment graphic grunge hailer hand handle handwritten illustration loud loudhailer loudspeaker media mega megaphone message metallic microphone mobile monochrome notify obsolete old outline phone plastic portable power proclaim propaganda public reproducer retro rough scribble shout sign simple siren sketch sound speak speaker speakerphone speech support symbol talking tell tone tool vector vintage voice volume warning