A visitor touches a hellium balloon robot, controllable via a mobile app, during the Appliance & Electronics World Expo 2018 (AWE2018) at Shanghai New International Expo Centre in east China's Shanghai, March 8, 2018. The AWE2018 opened here Thursday with over 800 global exhibitors showcasing the latest techs and gadgets in home appliance, consumer electronics, smart hardware, artificial intelligence, internet technology and other fields. (Xinhua/Fang Zhe)
