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Matemal age is easier than the average matermal danger .They need more people to protect.Companion bracelet can give them the desire to protect its own secunity needs.Bracelet encountered relatively dim environment will be issued reassuring light ,so that people around notice the presence of pregnant women and pregnant women be careful to avoid the collision.Bracelet linked with the family of phones,it is possible to remind preganant women to famliy safety,so that families can konw the safety information for pregnant women in the first time.
EAST CHINA NORMAL UNIVERSITY