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The blind man needs an alarm clock. When they wake up in the morning and turn off the alarm clock, they could know the standard time by touching the blind spots. Beyond that, they also can know the date and week. The function is more diversified than ever before.
The blind spots on the alarm clock can be set through the back of the button. when the blind rotates the button, in front of the blind spots will be changed.
Tao Meng Yue,
Wu Chun Mao,