So if you have a cheap (or expensive lol) drone that you want to try fpv on, here is a way of doing it.
I have done this on an MJX600 that was £40 (which was sold as a wifi fpv drone which means bollocks as wifi fpv is unflyable) and it worked ok.
It was good fun until I built a proper quad. There are better ways of fpv’ing a drone, depending on your budget of course…
All you do is buy an AIO (all in one) fpv camera and video transmitter for around £10, strap it to your drone and wire it to 5v in your drone (this may be the difficult bit for most people), and then buy cheap goggles. The cheapest I recommend are the ev800. £45.
Here is a video of my mjx600 with fpv. Done a while ago! The dvr was rubbish. The fpv was clearer.
At the very least, you can strap the fpv cam to your dogs head and watch it in the garden from your sofa!