Yes it works!, With my iPhone it works very well. But I can't get it to work with my android device. I dont know why but on my android device works the otg cable very well with a usb stick. So it's not the otg cable's fault. If you can get it to work with android tell me!
So with that otg cable you can set 2.4 and then you can reach the max distance in your country. I am in a CE country so I can get 500m but if you are in a FCC country (USA) you can go to 2km in a open area. In a city I can get 350m.(CE)
Before I had a lot of of problems with the controllers range , at 20 meters it begins to say : " not good image transmission, please reposition the antenna's ". At 20m! Then I fly 200@50 meters and the signal is lost. The channel is always 5.8G I tried to have a 2.4G transmission but after doing that I losed the link with the controller. And at 150 meters it was already shocking