This is the Spectravue Virtual Background System that projects an image from a slide onto the background at the same time the studio strobes are fired. This creates an image in the background of the portrait. A slide library of approximately 200 slides is included with system. Also included in the sale are the projecter, power supply, Titan tripod, and the 8 foot by 10 foot background screen. If you have any questions, please do not hesitate to ask.