... & RF remote control View angle:160 degree Size:22''-200" Motorized screen,Projector screen,Adavanced automatic-locking device Factory supplier1.Dust ... institution, meeting rooms, theatre, exhibit hall and large-scaled show stage, ect.5.Projector screen ParameteMatte white screen: Viewing angle is ... 9*915.517.5 Glass beaded screen/ Matte white screen Motorized screen,Projector screen,Matte white screen