An organic electroluminescent device, a flat panel display, and a portable electronic device using the same are disclosed. A server including a computer memory storing a first database including a directory is provided. The cathode shielding window is insulated from the molded body andor is made of an insulating material. Controlling the transmit power of mobiles as well as femtocellsaccess points for the purpose of minimizing SAR using variable transmit power limits is detailed.