... 2.Double-sided 3.Li-battery 4.electronic sub board/substitute board 5.Red&Green,AC110V-240V, 50/60Hz 1. Display Color ... 36cm x 5cm; 9. Power: Li-battery can charge.10. Double-sided11.Extra Time12. Including an integrated 6 buttons controller for ... boards,LED substitute board,2 sided,OVERSIDE AND BACKSIDE,BIFACE display