Router is the Device which used for connect with Internet . With the WIFI Router you can connect your device with internet You just need enter WIFI router username and password. But these Router cover a limited part of area. If you want to increase WIFI Router coverage area then we used WIFI range extender. To use router and extender you should know his setup process. My Website Routerssetup.com will tell you About setup process of some famous WIFI Router and Extenders.