An exhibitor demonstrates a wrist-worn virtual reality (VR) controller during the second annual Consumer Virtual Reality Expo at Vancouver Convention Centre in Vancouver, Canada, May, 6, 2017. The Consumer Virtual Reality Expo is Canada's biggest Virtual Reality (VR) and Augmented Reality (AR) conference with about 60 exhibitors worldwide showcasing their latest VR products and technologies during the three-day convention. (Xinhua/Liang Sen)
