... and days, especially Dazzling in dark environment.It is most often used in restaurants, shopping mall, coffee ... graphs with a fluorescent marker pen optionally.Write on and wipe off easily .when the power supply is on, ... board adopts safe 5V DC voltage, power plug is available for any country like EU plug, AU ... plug like Euro plug, AU plug, UK plug is available for all over the world.* Portable, set ...