The full name of WIFI is Wireless Fidelity.
It is a wireless LAN (Wireless Fidelity) based on the IEEE 802.11b standard; wireless network module
In addition, Wi-Fi is a trademark of the Wi-Fi Alliance manufacturer and can be used as a product Brand certification is a wireless local area network (WLAN) device based on the IEEE 802.11 standard, which is currently the most commonly used.