Common Indoor LED Display,Standard or Customized cabient sizes.-High quality black LED Lamps,outdoor fixed led display,outdoor led digital display,indoor full color led display screen,indoor fixed led display,indoor and outdoor led display,Indoor LED Display,Common LED Display. With best contrast and longer lifespan. -Cabinet is optional Iron or Aluminum.The viewing angle is large: the indoor viewing angle can be greater than 160 degrees, and the outdoor viewing angle can be greater than 120 degrees. The size of the viewing angle depends on the shape of the LED light emitting diode. Simply connect to your computer via a data cable connection or wireless communication. Simply set up your computer and use it to post advertising content, which is convenient and fast.