Staff members and visitors are reflected by a mirror wall at the area for Galaxy Note 10 of the booth of Samsung during the 2019 IFA fair in Berlin, capital of Germany, on Sept. 6, 2019. The 59th Consumer Electronics Unlimited (IFA) fair, Europe's biggest consumer electronics show, opened in Berlin on Friday, with the latest products and innovations from the leading global brands. (Xinhua/Shan Yuqi)