How much does Chongqing wireless network card charge?

Theoretical speed is 7.2m for Unicom, 3.2m for telecom and 2.8m for mobile. Network coverage of telecommunications is the best, followed by mobile. Unicom, mobile charging by flow, telecom charging by time. If your internet traffic is low, use Unicom. If you have high traffic, such as watching movies and playing games, use telecommunications. Moving is not recommended. The specific tariff is 80 hours 100 yuan, and Unicom is 80 yuan 1G traffic. You'd better consult the local customer service, namely Telecom 10000, Unicom 100 10 and Mobile 10086. The network card device is 120-350. It is recommended to use Huawei's network card, and the price is around 300 yuan.