... Matrix:16*128 4.2 years warrantly U-Great p10 message bus led display AdvantagesCan used in city bus, car, . . . . . .There ... wide mode, 66 other European characters25 methods of displaying your message (Cyclic, Scroll up, Scroll down, Open to Center, Open from ... to 300 - 500 feet / 100 -150 meters)KeyboardRS232/RS485Warranty2 years(free of charge parts & shipping)AvailabilityAllow 1-2 weeks