
A customer shops at BingoBox, an unmanned store in east China's Shanghai, July 21, 2017. The 15-square meter store has no cashier, which accepts self-assisted payments by quick response (QR) codes. (Xinhua/Ding Ting)

A customer shops at BingoBox, an unmanned store in east China's Shanghai, July 21, 2017. The 15-square meter store has no cashier, which accepts self-assisted payments by quick response (QR) codes. (Xinhua/Ding Ting)