2019.09.28 17:17 GMT+8

Smiles replace metro tickets in C China's Zhengzhou

Updated 2019.09.28 17:17 GMT+8
CGTN

Metro passengers in the central China city of Zhengzhou can smile at a screen to open the gates at 33 metro stations equipped with the facial recognition technology. Electronic cards or swiping phones can be used in other stations where the system is not yet installed.

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