I got one of the Ultra 4K HDR units one of the times they offered it and loved it. It is fast and can do almost any pay or free streaming service and supports Plex and all that in 4k if available. I finally got a Nvidia Shield that can do even more cool stuff and play games but these are great units for the money and if you want in to sharing everything on your network and stuff on the web these are a excellent option. The Nvidia Shields are a bunch more money so not a good fit for folks on a budget.
This was supposed to be model 4661 (2018 version) with premium JBL headphones. Instead, I received the long discontinued model 4660 (2017 version) with generic headphones. This is the same model I got at Target for $45 a year ago. 
Boo Woot. Boo.
Hi there. Thank you for the post. We’ve confirmed that we incorrectly listed the headphones as JBL. CS will be contacting customers.