This is an important first bed-side clock for your children. The design language is simple and sturdy. The display is large and well-lit. More importantly, the display changes color depending on certain conditions.You initially program sleep and wake times. Based on these variables, the display turns blue at sleep time, and will turn yellow at wake time. If there are bright lights in the room, the yellow display turns green.My 5.5-yr old has noticed these changes, and now knows that when the display is blue, it is time for bed. He is also reading out the numeric time display, although does not fully comprehend the meaning of 9:30, as an example!Very nice clock set for kids!