You'll need FPV goggles that have an HDMI input. Here are a few models that are commonly used with Phantoms (since they also require an HDMI input)
If you decide to go with one of the above FPV goggles, you'll need a mini HDMI to mini HDMI cable for the HeadPlay HD goggles and this battery charger
for the Fat Shark goggles. Everything else comes in the box.
Keep in mind that the Nvidia Shield K1 is going to display exactly what you see on the screen in Starlink. It's not going to be the typical FPV view that you'll see when flying a Phantom or other quadcopters.