I'm not sure how they do it, but @evleaks, the source of seriously every other iOS controller leak is at it again with the Razer Kazuyo. Like previous leaks, nothing is known about it aside from these images, but it's easy to make assumptions based on what we know about the MOGA Ace Power and the Logitech Powershell.
This one in particular looks a lot closer to the Powershell, and I expect it will work the same way with a single Lightning connector inside and some kind of battery pack with charging functionality. The unique feature of this controller seems to be the ability to tilt your phone in and out for a better viewing angle.
If you were hoping for a lower price iOS controller, sadly, I doubt this is it. Razer has had a somewhat notorious reputation for making very high-end and expensive gamer accessories for years now. Unfortunately, these awesome accessories also come with some pretty significant price tags. I could always be wrong, but my money is on this one coming in at the same $99 mark as the other two.