... ). glass & transparent board (2).easy to write and wipe off (3).24-48 RGB colours (4).OEM:10 pieces glass& transparent ... bright, digital technology designed frequency-dependent optical model 48,3, Plus remote control can be added a large-capacity lithium battery 12V ... Zealand, South Korea, Japan, Britain, France, Russia,and so on . 3.We are the suppliers of Midea and P&G .