Wondering if anyone has tried this new bos transmitter product that recently just came out. It's wireless / lightweight and simply plugs into the back of the gopro3 and 4 and I read up on it that the range is about 500m in the open! That's great news 5.8ghz and 32channels. I may try this and see how it works as I am sick of all the weight my fpv brings to my drone this sounds like a must and beneficial transmitter. I'll comment back when I have it and then tested it.