The Voice in the Sea Toucan is a simple but revolutionary product that allows one diver to talk to one diver. The Toucan is simply an underwater version of two cans and a string - it is more like two cans and an air tube. It collapses to about the size of a beer can, clips to your BCD when not in use and easily extends. One diver seals their end against their ear, the other diver removes their regulator, presses their end against their face around their mouth. The speaking diver then purges the water from the system by saying "one, two, three" - then begins speaks. It's really that simple. Their voice comes across very clear. In one breath, most divers can say more than they want - you can say your ABCs, count to 25 - say whatever you want. Instructors can talk to your students. Reassure them, repeat instructions. Never have to bring the whole class back to the surface to talk to one student. Have you ever had to wait to get back to the boat to find out what your dive buddy was trying to tell or show you? Never miss another interesting moment on a dive. Never again get back to the dive boat and hear "Oh, THAT'S what you were trying to tell me down there!"