Shanghai, China. 17th July, 2015. An exhibitor adjusts a brainwave instrument during the Mobile World Congress Shanghai in Shanghai, east China, July 17, 2015. The Mobile World Congress Shanghai was held here from July 15 to July 17. Credit: Liu Xiaojing/Xinhua/Alamy Live News

- Image ID: EXWFTC
Shanghai, China. 17th July, 2015. An exhibitor adjusts a brainwave instrument during the Mobile World Congress Shanghai in Shanghai, east China, July 17, 2015. The Mobile World Congress Shanghai was held here from July 15 to July 17. Credit: Liu Xiaojing/Xinhua/Alamy Live News
Xinhua / Alamy Stock Photo
Image ID: EXWFTC

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