Is the Xuzhou e-Travel worry-free bus card unavailable?

Cannot be used. The Xuzhou e-line worry-free bus card is a common bus card in Xuzhou. On December 31, 2016, the Xuzhou Municipal Government announced that it would stop using the e-line worry-free bus card and instead use mobile phones to scan codes for travel. The bus card is an IC card used when taking buses in the city. When approaching the card swiping machine, the coil generates an induced voltage, which can transmit data between the card and an external database.