Viewloader Revolution with X-Board Electronic Agitating Loader Agitating Feed Electronic Loader with feed rate of up to 14 balls per second. Includes multi-blade propeller for reliable balanced feed. The X-Board&#8482; is an all new circuit board that will upgrade your current Viewloader 12V Revolution (Faster Feed Rates, Sun Proof Vision System, Moisture Resistent, Extended Battery Life) Improved Vision System - Recognizes dark and/or black shell paintballs