Electric vertical tensioned screen Tubular motor with, RF/IR remote Perfectly flat mirror-like screen surface 4:3,16:9,2.35:1 AUVI electric tab- ... the housing channel, convenient to fix the screen.4. Wireless control, the screen can be stopped at any position any ... 1.10.91.4Viewing Angle:120°160°140° Electric Tab-tensioned Screen,Projection Screen,Projector Screen,with Tubular Motor, 120" 4:3, Gray ...