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