... , RF/IR remote Perfectly flat mirror-like screen surface 4:3,16:9,2.35:1 AUVI electric tab-tensioned Screens ... could be.2. Curved streamlined aluminum alloy housing, nice appearance.3. Mounting brackets can be moved freely in the housing channel ... H-Grey Video FabricAntiglare FabricGain:1.10.91.4Viewing Angle:120°160°140° Electric Tab-tensioned Screen,Projection Screen,Projector Screen ...