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Campanula Key / key

When people get to the door, it’s always difficult to find the key quickly, which is more difficult in the dark. This is very dangerous when faced with an emergency situation. Campanula key changes traditional connection methods, people can find the key quickly even in the dark.


Beihang University

Beihang University
Beijing, China


Beihang University

Beihang University
Beijing, China

Fulong Shen