1.substitute boards 2.Double-sided 3.Li-battery 4.electronic sub board/substitute board 5.Red&Green,AC110V-240V, 50/60Hz 1. Display Color: red and green2. Digital height: 10″3. Input power: AC110V-240V, 50/60Hz4. Power consumption :< 55W5. Net Weight: 6.4kg6. Viewing distance: ≤100m7. Brightness: ≥4000cd/m28. Size: 85cm x 36cm x 5cm; 9. Power: Li-battery can charge.10. Double-sided11.Extra Time12 ...