Alexa supports a growing number of free and subscription-based streaming services on Vobot:
You can ask Alexa to stream music and media directly from these services through your Vobot. After you register an Vobot to your Amazon account, you automatically have access to any music available in your Amazon Music library and any audio books available in your Audible library. Amazon Prime members can also enjoy playlists, stations, and over two million free songs. Amazon Music Unlimited subscribers have access to a catalog of tens of millions of songs.
Other services may require you to link an existing account or subscription to your Amazon account in the Alexa app.