The device is working, guaranteed. It comes with its cables + its original controller + original Microsoft battery, which costs 130 new.
Notes:
To be clear, the controller works fine, but sometimes it has a very light drift that doesn't affect gameplay and is barely noticeable, but it's there. It's likely dirt that costs 20 riyals to fix.
The controller has a very, very minor crack from the bottom, as shown in the pictures, and you won't feel it at all while playing.
The highest offer is 500, and I hope to sell it soon.