... .CE,RoHs,UL certificated 3.power or rechargeable battery LED writing 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 ... four frame color available(black/golden/grey/champagne).2.Easy-writing and hard wearing---Ultra-clear glass or acrylic board used ...