In a wireless local area network which includes access point having variable transmitter power levels, transmitter power data is sent from the access points to the mobile units and used by the mobile units in order to provide a corresponding variation in the transmitter power of the mobile unit. The apparatus comprises a radiative energy transmitter 26 for radiating energy to a zone of the body 2 to be protected from excessive cooling. The public internet server stores the private network ID and an IP address for at least one or more private DNS servers on the private network and sends, upon request, the private network ID to at least one of the private DNS servers. Offers on the first side are inaccessible and offers on the second side are accessible to the participants. Compensation circuitry compensates the digital data representative of the image using the information indicative of the locations of the defective pixels. The control member includes a readily movable module which may be detachably located on the front surface of the control panel.