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self-saving ring / product

self-saving ring
self-saving ring

Self-saving ring is a ring for women to protect themselves from the bad guys.There is a GPS and a tiny camera in it.When someone attacks you,the ring will discharge electric from the cusp,at the same time the GPS and the camera begin to work and the police will get the message sent from your ring.The one who attacked you gets insensible so that you have enough time to escape.

University

Zhe Jiang normal university

Zhe Jiang normal university
Jin Hua,Zhe Jiang, China

Xiaoyi Yang,
Zhe Jiang normal university

Jianbo Qian,
Zhe Jiang normal university

Shanshan Yang,
Zhe Jiang normal university

Shengtao Lai,
Zhe Jiang normal university