OMG is all I can say. If you use the fc40 camera you need this! I used stock antennas and iPhone 5s. I flew out until my craft was a speck in the sky and wifi video worked perfectly. Not a single drop or lag. I don't think I will ever want to fly farther than that. Very happy. Next I will test it with my gopro. I know about the lag but I'm ok with it for my usage.