At present, all domestic early education machines are upgraded free of charge. If the other party needs to charge, maybe you need to buy a card. This traditional card early education machine has been gradually eliminated. Buying cards is an iterative process. The best carrier of children's early education is children's tablet computer. Early childhood education apps are free and unlimited, with great value-added space and use value, and can be used after primary school. For example, the kimi early education computer owned by Kuaiyidian should be the best in China at present, and it can be learned in stores all over the country.