These sold out faster than a <$200 Wii U at Kmart and now they are back in stock at the same price. I just put in an order and see that people are posting that they are back at hobbyking, so expect them to sell out fast again.
I went with the cheapest delivery option which was ~$10 by registered air mail.
What are they? FPV goggles of course! If you don't know what that is then this bargain most likely isn't for you :) But basically you strap a monitor with a magnifying lens for a wider field of view to your face, and a wireless camera to a radio controller plane so that you can fly it from a cockpit perspective without shrinking yourself to fit in the model. There's no shortage of FPV videos on youtube so if it sounds like something you may enjoy, take a look at some videos about the hobby. But beware, it's a rabbit hole of never ending knowledge that you can and will lose yourself in if you decide to start researching.
Personally I prefer the single larger screen with fresnel lense than my entry level Fatshark goggles and they cost 1/6th the price. My friend went with a DIY option a year ago and I was always jelous of how he managed to get a better product than me by spending a fraction of the money. Now I can do the same. They would make a decent first set of goggles, backup set, or even for a passenger to come along with.
Build video:
https://www.youtube.com/watch?v=svbiqp5YfzQ&feature=youtu.be
Review videos:
https://www.youtube.com/watch?v=0KStYDDLH7E
https://www.youtube.com/watch?v=dXK9Iq1Gjo8
Can't see nay Blue oval on these !