Free-choice affiliate is the platform of China Mobile's online business hall. Optional joint membership is a value-added service launched by Mobile, which includes 15 membership services such as Tencent video, QQ music and cool dog music. The first month's fee for membership service is 1 yuan, and the next month's fee is 6 yuan plus 5 GB. The fee will be deducted from the mobile phone bill of the subscription service, and its biggest feature is that it can be used by other members every month. The fee will be deducted immediately after the business is successfully handled. You can select the required category in the membership rights interface, which can be selected once every natural month.