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Survival phone case / Mobile phone shell

Survival phone case
Survival phone case

When people need help, whistling is a way of asking for help that consumes the least amount of energy
And it can easily attract the attention of rescue workers.Due to the increasing popularity of mobile phones, mobile phone cases are also carried daily by people.This product is a survival mobile phone case.
When people are in danger, they can be alerted to rescuers by using a survival whistle on the phone case.
So rescuers can greatly improve the efficiency of rescue.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

Yuhang Tang,
Dalian Minzu University

Yunzhe Zhang,
Dalian Minzu University

Chunming Wang,
Dalian Minzu University

Yutong Hu,
Dalian Minzu University

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