I've heard lots of comments suggesting that they may be fakes. Wouldn't they simply not be able to connect to the DJI Fly/Go 4 app? So it'd be fairly simple to see if they're fake and return it would it not?
I think it's far too much money to gamble on being able to return the item and get a refund since you're going to have no buyer protection on your side if you were buying something in your own country. That said even if it was through Amazon in the UK where I knew I'd likely get a refund I still wouldn't buy it since it's just waste of time and effort, those prices are so ridiculous there's no question they're a scam. There are some items that can be far cheaper from China but that is not the case with DJI drones.