I was never very fond of the Holy Stone controller phone placement on my HS720E controller so I made this mod that hold my old iPhone 7Plus that works like a champ for a dedicated drone screen. This allows the phone to slide into a custom slot, then open the controller legs and push it into the holder. It wont slide out or allow the phone to accidently fall out. I shook it hard and nothing slid. I am working on all versions for the iPhone 15's. I can do more on request.