This electric projector screen will be ideal for classrooms, home theatres, public displays, conference room presentations, etc. This electric projector screen can be either ceiling or wall mounted. The smooth surface is made of special UV- and mildew-resistant fabric which is also antistatic and acid repellent, thus preventing dust accumulation. The screen surface is easy to clean with a damp cloth. The black masking borders on all four sides increase the focus of the picture and contrast. With a built-in motor, this projector screen can be lowered and retracted automatically. Thanks to the included remote control that requires 2 AAA batteries (included), you can operate the screen more freely. Assembly is really easy.