Its About Time Stoplight Sleep Enhancing Alarm Clock Kids Purple Pink Owls Light. Optional 2 x AA batteries or plug adapter Yellow nightlight feature Great sleep trainer for red light sleep green light awake Alarm buzzer option Sleep enhancing alarm clock for kids featuring a stoplight and sculpted figure Toddlers know if it's time to get up by looking at the stoplight Red light means it’s time to sleep; green light means it’s s time to wake up Digital clock and optional beeping alarm function included | Features a friendly owls