1) Contactless smart card 
The Beijing Municipal Administration Traffic Card ({zh|s=北京市政交通一卡通|p=Běijīng Shìzhèng jiāotōng Yīkǎtōng}), more commonly known as the Yikatong (literally One-card pass), is a store-value contactless smart card used in Beijing, China, for public transportation and related uses. It is similar to Hong Kong`s Octopus card, ....