Reaper Brothers holographic translucent rear projection Screen formatted for your Window or Door that creates a perfect 3D effect (includes mounting tabs) This Atmosfx video is a quick and easy way to decorate for Halloween. These video effects will turn any environment or surface into a thrilling and magical experience. The videos have continuous looping for unlimited run time which is perfect for any event. Set up is so easy. Simply hang the rear projection screen in your doorway or Window, Insert the USB stick into the projector, put projector 6-8 six ft. from your doorway or window, press play, then watch from outside and you can see spooky characters moving around in your house.