As per company sources, Alexa Cast works with all Alexa-enabled devices, meaning it supports Echo speakers, third-party Alexa products, and some of Amazon's Fire devices. Separately, an app has been developed to let sign language users communicate with Alexa.
A new Alexa Cast feature allows users to control the Music that they play in their Alexa-powered devices. The feature currently works only with the Amazon Music app. However, it is expected to compete with Google Cast by allowing users to control music, movies, podcasts, and more playback from various apps. The Alexa Cast feature minimises the hassle of playing and controlling Amazon Music on an Echo-series smart speaker from an Android or iOS handsets.