19" -B Advertising Monitor ( LCD, Advertising ,Monitor ) Technical Parameters: ( LCD, Advertising. monitor) Technical ParametersTechnical paremetersSize19 inchesResolution (pixel)1440*900Aspect Ratio16 ... recreation place.2subway,train station,airport.3taxi,in the bus,on the train,in the subway,in the plane4supermarket, ... speed . 13. Support the instant upgrade of software. 19" Advertising LCD Monitor