An interactive electric toothbrush from Oral-B is displayed in the City Connected booth at the Mobile World Congress, the world’s largest mobile phone trade show in Barcelona, Spain, Wednesday, Feb. 26, 2014. The global wireless show that wraps up on Thursday has seen a push to get mobile devices cheap enough to reach emerging markets without sacrificing so much performance. While the affluent crave the latest iPhones or Android phones, most of the world can’t afford the hundreds of dollars they cost. (AP Photo/Manu Fernandez)