About the AndroidTV Nature Relaxation App + Walkthrough
How to Download/Register Your Email for Login: For easiest account management, it's better to firstsign up for your free 30 day trial here and then install the app - but you can also sign up using your preferred payment method stored under your Google Play account. Once Downloaded, login using the email you registered the free trial with, and you are all set!
Key Features of Nature Relaxation's Amazon Fire TV App: Loop/Repeat 1 Mode, Playlist Continuous Play, Full Library Access, Voice Search (Certain Models), Full HD Support (Your Subscription Will Automatically Upgrade to 4K in Q1 2017). Your subscription also gets you access on all of the other apps and computers.