Wi-Fi is a technology for wireless local area networking based on IEEE 802.11 standards. It uses radio waves for providing high-speed Internet and network connections. It has no physical wired connection between the sender and receiver with radio frequency technology. Wi-Fi compatible devices can connect to the Internet via WLAN and a wireless access point. In common, Wi-Fi uses 2.4 GHz UHF and 5Ghz SHF ISM radio bands.