Elite Screens VMAX235UWS PLUS4 VMAX Electric Projection Screen (235-Inch 1:1 Aspect Ratio) MaxWhite 1.1 gain black backed material Includes Radio Frequency (RF) remote to operate from up to 100 feet away without the necessity of line of sight CAT5 cable wit RJ-45 connector for easy extension of the 5-12 volt trigger/IR "eye"receiver/3-way wall switch Synchronous motor allows silent operation with extended operational longevity and low power consumption Standard 2-year parts and labor manufacturer's warranty Durable all-metal casing for wall & ceiling installation Max White 1.1 gain matte white screen material is durable and easy to clean and has a 160 degree wide viewing angle for large group presentations Synchronized motor allows silent operation with extended operational longevity and low power consumption Internal IR/RF receiver eliminates the need for a wall box Easy control by either low voltage 3-way wall box, radio frequency (RF) remote, infrared (IR) remote or the Internal 12 volt trigger which enables drop/rise cycle to synchronize with the projector's power cycle