I have just purchased a phantom 3 pro (second hand but barely used). The controller only has a micro USB, so following other threads it appears to be similar to the standard controller. I have had to connect using wifi. Not a problem, but I am wondering what I have got? The controller does not have a sliding switch to turn it off and on like the standard. Sounds like I have a hybrid. The camera is 4k, so I am confused! It comes from a reputable source. Just wondering what I have got here?