Parents can set the time for their children to use their mobile phones before they get them. At that time, the gray box will present a warm reminder to warn children of the dangers of excessive use of mobile phones, and at the same time lock the screen to prevent children from continuing to play mobile phones.

Application download reminder

In gray's box, there is a reminder function of APP download. Children download applications on their mobile phones. If we have a parent client, we can receive the message at the first time. After that, parents can judge whether this APP needs to be stored in the child's mobile phone. If not, parents can directly refuse to download the APP.