DR4439 Features: * Clean appearance of a ceiling-recessed screen. * The closure is supported for its entire length so no sag is possible. * All surfaces are bordered in black. * Perfect for data projection. * 12"" black drop is standard. * With control options, it can be operated from any remote location. * Warranted for one year against defects in materials and workmanship. Options: * Depending on surface, available in sizes through 12" x 16" and 14" x 14" and 240"" NTSC. * Custom sizes available.