MANUAL SCREEN CONTROL: This pull-down movie screen ceiling/wall mount projector screen is fully retractable and has a self-locking mechanism so you can simply roll down/pull down the screen and ...

One of the main issues is they really need a screen. This is true of any projector, but especially one that's throwing its image almost vertically, potentially spilling light on the ceiling.

Projector screen with stand：100 inch Portable projection screen, 16:9 format,160° Wide Viewing Angle. That offers sharp and high-resolution images,even support Front & Rear projection.

For a true home theater experience you’ll want to look into ceiling ... offers Intelligent Screen Alignment and Intelligent Obstacle Avoidance, which makes setting up the projector much easier.