LED Digital Scrolling Message Name Tag ID Badge One LED Digital Programable Scrolling Message Name Tag Badge - Black Case With Red LED Scrolling Lights It Is All Self Contained And Fully Programable Without Any Wires, Cords Or Software Programs It Measures 2 3/8" Wide x 1 3/16" High x 1/4" Thick It takes Just One CR2032 Button Battery And Two (1 Extra) Are Included With The Unit