My Pillow Pets Dream Lites 11" rainbow unicorn. There is a built-in timer option that shuts off after 20 minutes. Folds up into a pet or opens to lay flat. All the Dream Lites come with 4 light options: steady blue, amber, green and the 4th is all three colors that transition every 4 seconds. Requires 3 AAA Batteries or 4.5V DC Adaptor (Not Included).