I am really glad to see that DJI has come out with a set of Goggles to fly with but I can not find very much info on the goggles. Can not find cost or any specs on the goggles. Additionally, I am wandering which model of phone is best to fly the Mavic with. I fly my Phantom 4 with an iPad Air 2. It is hard to find out which size phone and such the Mavic controller will work with according to size. Any help appreciated.