Electric128X Spectrum series Projector Screen- 128" Infrared (IR) remote control Detachable 3-way wall switch Built-in 5-12 volt trigger port (RJ-45) enables Drop/Rise operation to synchronize with the projector's power cycle Low-voltage internal IR/RF receivers Optional ZR800D IR Universal Remote Control, RF Remote, wireless 5-12 volt trigger, and In-wall switch