100'' work by motor conveniently used in school or home theatre with longevity and noiseless motor style projector screen

exciting 100'' work by motor convenience use in chool or home cheaper with longevity and  noiseless motor style projector screen     1,Octogonal steel casing 2,Ideal projection screen for home theater movies, classroom training or conference room presentations
3,Pre-wired power cord with integrated switch for fast installation
4,The projection surface utilizes unique materials creating a smooth surface for superior image quality
5,Manual switch, remote control of RF or IR is optional
6,Synchronous motor driving device, free to stop at any location
7,Available for ceiling mount and wall mount                                                             
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