Amazon has launched two new devices today: one for you, and one for your kids. The former is a charging dock that instantly switches Fire tablets to "Show Mode," its new full-screen Alexa experience that makes whatever's displayed on a Fire tablet more visible to the whole family. In Show Mode, Alexa can display full-screen visuals for schedules, weather forecasts, movie trailers and camera feeds, among others. The dock can make sure Alexa stays in that mode if, say, you use the tablet in the kitchen to display recipes or in the living room to display weather forecasts or to take video calls. Amazon has released separate versions for the Fire HD 8 and the Fire HD 10, and they're now available for pre-order for $35 and $50, respectively.