In telecommunications the term Wi-Fi indicates the technique and related devices that enable end users to connect to each other through a local network in a wireless (WLAN). In turn, the local network thus obtained can be interlaced to the Internet network via a router. Any device or user terminal (computer, mobile phone, PDA etc..) Can connect to networks of this type, if supplemented with the technical specifications of the Wi-Fi protocol. EGA Systems designs manufactures and certifies facilities WiFi 2.4 and 5.8 GHz radio links with high quality performance and weather resistance. Today more and more devices using the IP protocol to communicate between them and the possibility of eliminating the cables makes their proliferation only a matter of time. In a few years the appliances (TV, fridge, oven etc.). Communicate with us by phone or tablet thanks to IP and wireless thanks to Wi-Fi