If you really don't have a broadband cable, you can use 3G wireless broadband, but 3G wireless Internet access is very expensive. The speed and signal of China Telecom are very good. I am using China Telecom now, but the time package is not enough for you to open an online store. You can use a data package, but it is not as good as a time package. If you want to be online every day, how much time do you need? That will cost more. For example, a time package of 200 yuan includes 200 hours of time. How many packages do you need? You can choose ZTE or Huawei brands for wireless network cards. I am using ZTE now and it feels good.