The Izy Speak app is used for configuring the Intelbras smart speaker on your wireless network (Wi-Fi network) and can be used to customize your device such as name, language or even restore phone settings. factory if necessary. In addition, through the app you can link your Amazon alexa account to the product so that you can enjoy the features that a smart speaker offers, such as playing music, reporting news, weather, traffic, miscellaneous information and even commanding devices. smart as lamps, sockets, switches, etc.