Electronic Wall/Ceiling Matte White Mountable Motorized Projection Screen w/ Remote (100" 16:9 Aspect Ratio) Electric motor allows silent operation with extended operational longevity White viewing surface diffuses projected light uniformly 4-side black masking borders eliminates light penetration and increases picture focus & contrast Metal case with heavy-duty roller and reliable spring for easier installation Cordless remote control system allows you to adjust the screen height at distance