... ect) can be flashed out on the fan. 2).Available letters,number,and symbols:A to z,0 to 9,+,-,*,$,@,!,( ), 3).promotion ... fan can display 6 groups difeerent message 4).Various ... can beavailable,wecanpassed EN71, FDA and ROHS Standard . mini usb fan with customized led message OEM&ODM led message ...