mobile and headset holder

I accepted the challenge to design something movable printed in place.
Finally it is a phone stand for the desktop with a holder for the headset.

Printing:
The holder itself is best printed like it is used later.
The screw is best printed with the thread pointing to the sky
The headset holder, well find the best way yourself.
Support is only needed for the headset holder.
The screw and the stand doesn't need any support.

After printing the holder, you need to carefully press, push and pull the inner part up and down. Then it will become turnable.