Telecom π Card is a brand-new brand "Youth School" launched by China Telecom for young customers, and its exclusive online product "π Card" is a product launched by co-branded virtual star Tianyi Luo. "Youth School" products have no package and signing fee. Domestic voice is 0. 1 yuan/minute, domestic short message is 0. 1 yuan/message, and domestic traffic is 5 yuan /GB. In addition, you can choose 20 yuan-120 yuan six-speed traffic package, which includes traffic from 5GB, and you can buy 30GB at most.