According to Cai Yu's inquiry. Com, yihuilian mobile phone pos machine is normal. Yilian is a mobile phone POS software launched by Yilian Payment Company. There is a formal payment license issued by the central bank, so it is very reliable to use. Support a variety of payment methods, including WeChat, Alipay, China UnionPay Express, etc. , so that you can pay by credit card anytime, anywhere. Compared with traditional physical pos machines, e-mail has many advantages. First of all, it doesn't need any hardware equipment, just need to install the APP on the mobile phone, which is very convenient and fast. Secondly, the fee is also very reasonable, the rate ranges from 0.38% to 0.60%, which makes your credit card fee cheaper.