Unicom parent-child card introduction?

Parent-child card is a number card product launched by Unicom for parents. Parents can open the family guardian function, that is, set online time and limit online time; Remind risk websites in real time; Statistics online records, automatic push browsing briefings and other functions. If parents have Unicom main cards that can handle secondary cards or family cards, such as Tencent Dawang Card, Alibaba Card, ice cream package, etc. They can also bind the parent-child card with the main card, enjoy the traffic and voice of the main card, dial each other with the main card for free and pay the fee uniformly.