Led programmable sign display,led display,led screen, led message sign,led board,led advsertsing display ed programmable sign display,led display,led screen, led message sign,led board,led advsertsing display Has Following detailed specifications: Display English or ... , RS232 com port, or Infra-red remote control ,TCP/IP network ,wireless control• Viewing Angle: 140° for indoor models, 110° for ...