Photo taken on Nov. 16, 2016 shows the pocket unmanned aerial vehicle "Dobby" during the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province. The hi-tech fair kicked off in Shenzhen on Wednesday. (Xinhua/Mao Siqian)
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Photo taken on Nov. 16, 2016 shows the pocket unmanned aerial vehicle "Dobby" during the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province. The hi-tech fair kicked off in Shenzhen on Wednesday. (Xinhua/Mao Siqian)