POS machines for consumption points are generally large shopping malls (such as Century Jinyuan Shopping Center, Golden Eagle International Shopping Center, etc.)

Large supermarkets (Wal-Mart, Carrefour, Hualian Yonghui, RT-Mart)

Electrical Appliances Mall (Suning Gome Dazhong)

Major hotel chains (such as Super Inn Home Inn Kempinski, Zhongtian Hyatt, Guihang Sheraton, Tianyihao Upgrade)

Of course there are many small shops too, it’s hard to list them all, as long as they are regular merchants, they basically have them