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Our design conbines the pen with light-emitting diode,it is very convenient for people who are found of reading at night.
we just clampe the pen on book when we are reading at night and it is convenient to take notes.On the other hand,it also
can be a light.
Nanchang ,jiangxi province,China, China
Ren Guoqing Zhu Yanfei Li Shengjie Ou Yuanyuan