Many people who fell into the sea during a shipwreck failed to survive. It was not because they were not wearing life jackets. They were because the sea was too rough and the water flow was too rapid. The search and rescue personnel searched for time and caused the landfallers to lose their strength.
"European Space Agency" cooperated with a Finnish company to develop a "waterproof satellite positioning device". The material of the life jacket is made of waterproof and heat-insulating material. The satellite positioning system is installed on the life jacket, which is like adding a satellite positioning function to the life jacket. Allow rescuers to quickly locate the landfaller and increase the chance of being rescued.
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