Troika robot speaks 4 languages

Meet Troika, a self-driving robot made by LG electronics. Starting in July, robots like this will rove incheon international airport telling travellers how long it takes to get to boarding gates and escorting them to their flights. Troika, about the size of a young teen, is equipped with a rectangular display on its front that looks like a giant smartphone screen and can show flight information, an airport map and weather data.