For what it's worth, I found a way to use my Fatshark googles with the iPhone 6+ while flying the Tello. A couple of adaptor cables, a power supply to run things and amazingly, it works! There is a lot of lag in the video but I can get something of an immersive experience. Now, to figure out how to get around the video lag problem. That's my biggest issue right now. And lots of overcorrection using the GameSir controller (Bluetooth connection-I've read that the wired version is much better in that regard).