The universal wireless 12V projector trigger from Elite Screens works in conjunction with your projector's power supply to raise and lower the screen wirelessly. It has a range of up to 80 feet. This item is compatible only with Elite electric screens. All you need to do is plug the projector's power cable into the trigger. This trigger works with screens of version 2.0, such as the Elite Spectrum, Spectrum2, VMAX2, CineTension2, Home2, Evanesce, and VMAX Plus3 or Plus4 screens.