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There is a technology that allows devices which are electronic to connect to a wireless local area network, mainly through the 2.4 GHz and 5 GHz UHF, SHF, or ISM radio bands, which is known as Wi-fi. WLAN network is typically a password-protected, but can be opened, by allowing any device within the range of WLAN access network resources.

The trademark of Wi-Fi Alliance is “Wi-fi”. The “Wi-Fi Certified” trademark may be used by products of Wi-Fi, which have successfully passed the certification test of the compatibility of Wi-Fi Alliance.

Devices that can use Wi-Fi technology, including game consoles, smart phones, tablet computers, laptops, digital cameras and digital audio players. Wi-Fi enabled devices can connect to the Internet via WLAN, and wireless access points.

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