1. This kids bedroom wall clock is 13cm in diameter and made of high quality ABS+HD glass+metal hands. The large numbers are legible and the front glass cover guarantees a crystal-clear view.2.Powered by 1 AA batteries (not included), the average battery lasts more than 1 year; please use regular alkaline batteries, not heavy duty batteries.3. This alarm clock features a superior precise quartz movement to ensure true silence and accurate time, as well as a smooth second hand. You no longer have to worry about its annoying clicking noises at night.4. The cute cartoon character design is sure to be loved by children, this practical art is both beautiful and functional Perfect for children's bedrooms, classrooms, study rooms. It can also be used as a birthday or Christmas gift for children.