... sign controlled wirelesslyOutdoor single color display can display single red or green color. The content display can be ... rate, time, date, days, weather, notes and public transportation system.Support TXT, BMP files, can display English, Chinese, Numbers ... lines, 10 characters per line (adjustable)Control methodMemory card / infra-red remore control / RF wireless control / GPRS / GSMPixel density3906 ...