I needed a reduction for my EV800D to a mobile phone, and there it is.
As any owner of these glasses know, the display can be removed and the second part is loupe, so the idea was to use it not just for self builded drones but also for DJIs drones and use my phone.

Print instructions

Print with supports, but they are needed just at the top as it is shown on 2nd picture.

After printing put a rubber band to holes on the bottom and top