Portable wifi is a device that can convert the wired, 2.5G, 3G, 4G network or Internet connection on the computer into wifi signal, share the wifi signal from the network without wifi to form a temporary wireless local area network, connect to the Internet, and provide one to multiple wireless Internet terminals for use, convenient for mobile office. Provide Internet environment for business travel. Divided into sim card and usb computer for two.
1, USB computer, do not need another foreign network fee, but the premise is that the computer must be connected to the Internet (the computer Internet fee is to be paid, but not by the portable WIFI to bear, but by the Internet computer users to bear), the portable WIFI into the USB port of the computer, you can expand the computer network into a wireless network. Mobile phones, laptops and other wireless devices can be connected.
2, SIM card, this is the need to pay to the telecommunications department.