Position your projector with one of the following methods:- Front: The projector is placed on a table in front of the screen. This is the most common way to position the projector for quick setup and portability. - Rear: The projector is placed on a table behind the screen. A special rear projector screen is required. - Front Ceiling: The projector is suspended upside-down in front of the screen. A ceiling/wall mount kit is required. - Rear Ceiling: The projector is suspended upside-down from behind the screen. A special rear projector screen and ceiling/wall mount kit are required.Notes:- After turning on the projector, press the Projector Settings button on top of the projector, then go to Advanced Settings > Projector Mode to select a setting.- It is unnecessary to tilt the projector toward the projection surface. Your projector has autofocus and auto keystone correction to create a well-sized and clear image.- For more control over projector height, you can place it on a tripod (sold separately).- The distance between the projector lens and the screen determines the projector screen size.