And, if rain impacts the event, the Blue Ocean Megaphone will keep working, just like the rowers and refs.' 'Our Blue Ocean Megaphone will make a difference for participants and spectators as they will be able to clearly hear referees or volunteers in the basin area. 'We are so pleased that the world's best-built megaphone will assist in the success and safety of the world's largest rowing event,' said NK CEO Alix James.