The document discusses verifying compatibility of devices with NUMCAST, a new hardware protocol. Only Windows 8.1 or higher and Android 4.2 or higher have the necessary OS support. Compatibility also depends on up-to-date drivers and a modern processor. It provides steps to check compatibility on Windows 8.1 devices using DxDiag and on Android 4.2+ devices by checking for wireless display options. It notes alternative options for wireless display for devices without support, such as using Apple TV, specific software solutions, or DLNA apps on non-rooted Android devices before 4.2.