Look at the above man, there is a red light on his left ear. Does it just make us feel beautiful or cool? What is it real function?Actually it is a kind of indicator light. When he is walking and need to turn left or right, the indicator light will tell people or autoes behind him. Its switch is on the man's belt. He could switch on and off conveniently.
According to the product description, it is mostly used in super markets, where it is so crowed, to avoid traffic accident.
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