What is the Amazon Music Single Device Plan?

Unlimited access to 100 million songs on a single eligible Echo or Fire TV device.

Amazon Music Unlimited Single Device Plan gives you all the benefits of Amazon Music Unlimited on one eligible Echo or Fire TV device.

To start a free trial on your Echo just say, "Alexa, try Amazon Music Unlimited."
To start a free trial on your Fire TV, open the Amazon Music app on your Fire TV via the Settings page.
You can't enroll in the Amazon Music Single-Device Plan through the Amazon website.

Note: You can listen to music on multiple devices during a free trial period. But once the trial period ends, you can only use the device you signed up with.

The Amazon Music Unlimited Single Device Plan supports pairing a single Echo device with Echo Sub in a sub pair.

You can pair the Echo device with one Echo Sub. But Multi-Room Music and speaker sets aren't supported.

Use your voice to find and play music, or to add titles from Amazon Music Unlimited to your Library.