Echo range of devices mainly constitute of a speaker you can use with Amazon Alexa. It upgrades your speaker to an alexa enabled smart speaker You just need to plug the Echo input to your speaker via 3.5mm or Bluetooth, connect it to WiFi using the Alexa app and sign-in to your Amazon account. The device is sleeker than a deck of cards so easy to store anywhere. It streams from Amazon Prime Music, Saavan, Gaana, Hungama Music- Just ask for the music and favorite artist or let Alex pick a music for you. But Bluetooth is not supported when using multi room music.