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Swith on the light, Turn on the computer, Start the enginee...
Everyday people switch on a lot of things ,but do people remember to switch them off?
There is a symbol of switch button at the bottom of Switcup
The idea is to remind people switch off after use ,so when people cleaning and drying the mug ,they will notice this symbol.Hopefully people will remember to do switch off action at all time!
National Cheng Kung university