How To Control The Children Using Time on A Tablet?

Many parents agree their children to use the tablet, but if they don’t set a limited using time, it is bad for children. The tablet will bring some fun to the children, and some puzzle games can help to develop their intelligence. It’ll be bad to their eyes and other sides if they're playing for a long time. So, do you have any good idea or suggestion to help the children get both happiness and healthy protection? Welcome to leave reviews to give useful advises to other parents.