[Safety Design] Safe ABS material, the alarm clock has a child safety lock function to prevent children from accidentally destroying the set functions. This kids alarm clock needs to be plugged into the attached USB power cable to use. [Toddler Sleep Trainer] A kids sleep trainer with a cute appearance, designed for children, allows children to distinguish when it is time to go to bed and when to get up, so that children can develop good sleep habits and help parents get more sleep. [Nap Timer & Snooze Function for More Sleep] Nap timer setting available. The snooze function provides extra sleep time to fully refresh before getting up. [Different Colors & Brightness] Can be used as a night light. The night light of this alarm clock has 5 different colors, which can help the child's sleep. In addition, it has a temperature display function and the backlight has four levels of brightness that can be adjusted. [Sleep Sound Machine with LED Night Lights] 3 kinds of sleep aid music, 5 kinds of alarm music, 3 levels of volume can be adjusted to meet different needs.