YABER Pro V9 Manual De Instrucciones página 15

the remote controller to adjust the focus of the lens, tap or long press
the focus button until the image is clear.
Note: If it is still blurry, please try to adjust the projection distance.
2. Keystone Correction
You can use the automatic keystone correction or digital 4D
keystone correction of the projector to change the image to be
rectangle(vertical and horizontal). Detail please refer the page 17 of
this manual.
Setting Up The Projector
The projector's home page is as follow.
EN 11