For consumer rights protection issues, you can call the 12315 consumer service hotline.

Wi-Fi (pronounced: /wafa/, French pronunciation: /wifi/), also known as "mobile hotspot" in Chinese, is a trademark of the Wi-Fi Alliance manufacturers as a product brand Certification is a wireless LAN technology created in the IEEE802.11 standard. Based on the close relationship between the two systems, some people often regard Wi-Fi as a synonymous term for the IEEE 802.11 standard.

"Wi-Fi" is often written as "WiFi" or "Wifi", but they are not recognized by the Wi-Fi Alliance.

Not every product that matches IEEE 802.11 applies for Wi-Fi Alliance certification. The relative lack of Wi-Fi certified products does not necessarily mean that it is not compatible with Wi-Fi devices.

IEEE 802.11 equipment has been installed in many products on the market, such as: personal computers, game consoles, MP3 players, smartphones, tablets, printers, laptops and other peripheral devices that can access wireless Internet .

Wireless network refers to "wireless compatibility certification" in the category of wireless LAN. It is essentially a commercial certification and a wireless networking technology. In the past, computers were connected through network cables, and Wi-Fi It is connected to the Internet through radio waves; a common one is a wireless router, then the Wi-Fi connection method can be used to connect to the Internet within the effective range of the radio wave coverage of the wireless router. If the wireless router is connected to an ADSL line or other Internet access Lines are also called hot spots.