Detailed Product Description Features:1) Size: 310 x 160mm2) Display: a) Display area: 120 x 25mm b) Matrix: 7 x 21 c) Number of LED: 1473) Can store 1 message, totally 120 characters; with 7 levels of speed to display, controller can store 4 messages4) LED colors: red, blue, green, yellow, white, pink, 3-colors mixed5) Data communication: input by infrared ray