Be aware with some of the OrangeRX receivers, that they've had quality control issues in the past. Some of the earlier DSM2 models were REALLY lousy with signal; I lost a plane in a crash, about 200 ft. out from me, when signal just DROPPED and the plane wouldn't respond. Apparently, someone else had switched on in the pits, and it randomly picked up one of the 2 channels that the OrangeRX receiver was using on the DSM2 frequency (which is why I prefer models that use DSMX, as it will hop throughout the spectrum as opposed to just 2 channels, hence the '2' designation).
I have used some of the newer OrangeRX receivers that are DSMX, and they work much better than the older ones, but it doesn't seem like they're easy to get my hands on - every time I've looked at HobbyKing (which is the only place that sells them, it seems) they're out of stock. Maybe you have better luck than I do with their stock. LOL
I'd personally look at the Lemon RX receivers instead if you want a cheap, rock solid receiver that's not actual Spektrum brand; I've had one in my Strix Nano Goblin that I've been flying for 2 years, using it with FPV and without, and had no problems flying it quite a distance away from me.
As for the Orange Transmitter that was being thrown about, don't do it. Someone showed up at the field with one a while back, and they're cheap. It didn't feel good in my hands, ergonomically, and the sticks felt like they had no resistance to them. I honestly felt like I was using a cheap toy transmitter, like those on the cheap RC cars that you used to see as Christmas gifts every year. And, HobbyKing recently got slapped with fines for selling transmitters that weren't legal for use within the United States since they were actually broadcasting in frequencies used by mobile devices. Trying to use one that might broadcast on the same mobile phone as you have in your pocket, and your plane starts freaking out when you get a call could be messy. Yes, it's cheap, but there are MANY other transmitters that are, I feel, a better buy than these.