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Two countdown functions / Products and Applications

Two countdown functions

Two countdown functions
This type of watch only has two functions:
1. When you set the wake-up time and sleeping time, the watch will display the remaining available time for you and begin to count down, so that people can intuitively feel the passing of time.
2. When you set a period of time, the watch will begin to count down, so that you can be more concentrated on what you are doing.

University

HUA Qiao university

HUA Qiao university
Quan Zhou, China

JIE XUE,
HUA Qiao university

De YU Xu,
HUA Qiao university