The WAVLINK AC1200 WiFi Extender is a device designed to enhance and extend the range of your existing wireless network. By connecting to your current WiFi network, it amplifies the signal and provides a stronger and more reliable connection in areas with weak or no coverage. The setup process involves plugging the extender into a power outlet, connecting it to your router, and then configuring the extender settings through a web interface or mobile app. Once set up, the extender effectively expands your WiFi coverage, allowing you to enjoy better connectivity throughout your home or office.