EdiRange is a mobile companion app for Edimax smart Wi-Fi Extenders. Smart extenders help to solve Wi-Fi problems and extend wireless coverage to dead zones that your existing signal cant reach. If you experience problems,connect directly to your extenders SSID.Support Edimax model list:EW-7438RPn AirEW-7438RPn miniEW-7438PTnFor technical support, please email [email protected]