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With the advance of technology, the age of children who uses 3C products gradually descends. However, using 3C product in an inappropriate distance could easily damage children’s eyesight and results in short-sightedness. This product measures the distance between a child and a 3C product and calculate an adequate distance. If the children enter the range which is to close, the screen of the 3C product will automatic turn black and generates a warning sound.This helps reduce the chances of getting children short-sighted.
Taichung City, Taiwan
Yung Sin Cheng,