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This product is designed for some special environment such as earthquake, the desert lost and field exploration.It is a necklace when not in use. People can wear it for decoration in the chest, at the same time for some field exploration of people with portability.When people meet accident risk and trapped, people can use it to collect water in the air, so as to add moisture to the body, prolonging the time for rescue.The air collector can be pumped out of the bottom, and become a cup to collect more water conveniently.At the same time, this section of the air collector power comes from electricity, people can charge it in advance. And its ou