... Easy wiping,write repeatly 3,CE&ROHS&FCC1, Details:Board: Black high-hardness and transparency ultra-glass or AcrylicCertificate ... can adjust by "UP/DOWN" control button or remote controller.Life 100,000 Hours 2, Applicationvarious shop, restaurants, supermarkets ... , shopping mall, etc. 3, Accessoriesone set led writing board including accessories as 4, Certificates 2012 Alibaba Hot Christmas Led ...