Specifications: 1) Color: single color (red, yellow, blue, green, white) 2) Display: English letter, character and drawing in the software (as follow) 3) Serial communication: USB of computer 4) Programming access: software system in the computer 5) Memory capacity: 256KB 6) Display speed: 5 different display speeds 7) Display pattern: 8 different display patterns and immobile patterns 8) Display housing: black ABS 9) Display area: 54 x 610mm / 2.1 x 24 10) Pixel and pitch: 5mm (pitch: 7.62mm) 11) Matrix (H x L): 7 x 80 (composed of SMD LED) 12) Input voltage: AC 110 - 240V 13) Size: 695 x 108 x 45mm 14) One set contents: a display panel, a power adapter and user manual