LED message board 1.write smoothly,easily wipe off with duster 2.CE,RoHs,UL certificated 3.power or rechargeable battery LED menu board1. easy to move, energy saving, environment protection.2. simple control button, CE/ROHS certificate approval.LED writing boardA kind of fashionable new LED advertising board, the board combines sparkling color cycling effects with a high quality flash to allow ...