China UnionPay recently announced the introduction of mobile terminals in Shanghai card reader "Colorful", and launched the "pay the national traffic fines" function to attract users.
According to the introduction of UnionPay, Callo is mobile payment hardware that connects mobile intelligent terminals with bank cards, and provides individual users with a variety of remote payment services, such as bank card transfer, credit card repayment, utility payment, etc., which also includes a nationwide penalty service, allowing owners to check traffic violations and pay fines, Covers more than 30 provinces (cities). After the user installs the specified client on the mobile terminal, the card is inserted through the headphone interface, and the bank card can be paid in its card slot.
Since this type of product was pioneered and introduced into China by the US payment company Square, the industry is calling it the "square terminal".