Specifications:

one-handed installation and Release in 2 seconds.

Head compatibility: 

The distance between two metal posts on the headrest should be 4.9in-5.9in.

Device compatibility: 

compatible with smartphones / tablets / Switch 4.7 "-10.5". It is the diagonal measurement of the screen, not the width.

Rotation: 

Rotation multi angle adjustment to adjust the best viewing angle.