megaphone sketch. hand drawn loudspeaker engraving , bullhorn announcement concept. news and ads

ads advertising announce announcement asian black bullhorn communications concept doodle draw drawing drawn employees engrav engrave engraved engraving equipment hand handmade illustration images imaging line loudspeaker man megafon megaphon megaphone news objects office old paper people retro scream simple sketch speaker speakerphone speaking speaks style tools vector white worker young