Programmable Scrolling LED Sign - Indoor Display - 16 inch (H) x 41 inch (w) (RED, GREEN, AMBER) Size 16''H x 41''L X 3 1/2"D, Tri-Color LED Scrolling Sign Programmable Via PC (Windows OS) Can be uploaded from USB Flash Drive Multi-Functions: Font Size, Time & Date, Special Display Effect, etc For Indoor use. Can be visable upto 300ft