The 43 x 57" Motorized Projection Screen from Pyle-Home is a reasonably-priced screen that is suitable for home or office use. The motor is smooth and rolls out and retracts quickly and easily using its in-line switch.
The matte white surface is mildew-resistant and fire-retardant. It also generates a bright picture with its Gain of 1.1 that produces a clear, sharp image when used where your ambient light can be controlled. The screen is designed with standard black masking borders that both absorb excess ambient light and also help to keep your audience's eyes on the screen.
The viewing angle is a respectable 120° making it very useful for a classroom or learning lab setting where your audience may be of considerable size. The image is evenly distributed over the entire surface with no hot spots and no color shift.