How much is the broadband 8M speed of Jiangyin Telecom in Wuxi, Jiangsu?

My family used to have unlimited traffic of 4M, but now the telecom notification can be upgraded to 8M 159 for one month, including sending two smart phones (* * 660min of talk time per month, 120M of traffic), and the monthly rent of the phone is included. You can also choose to add 300 or 600 to change the model. As for the call time, it can also be changed to more than 200 m traffic for 330 minutes.