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KEY REMINDER / KEY REMINDER

KEY REMINDER

When you hold the handle of the door,and if key reminder does not sense the ball on a key ring within one meter,key reminder will shake to remind you to bring your keys.

University

Xiangtan University

Xiangtan University
Xiangtan, China

Kexin Fan,
Xiangtan University

Haoyue Wang,
Xiangtan University

Xiuru Qin,
Xiangtan University