kaloDolphins communicate under water using sound waves that travel great distances. Now, human beings can also communicate under water, using a small device, attached to their hand. This is a vital ability for divers, who have become a major player protecting maritime infrastructure during recent years.
Ever since the natural gas deposits were discovered in the Israeli coastline, Hezbollah constantly threatens to damage them. To prevent these attempts, the Israeli navy operates a complete line of defense.
When several divers are underwater in a certain mission, they have no way to communicate amongst themselves, nor do they have the ability to communicate with the vessel that carried them.
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