A wireless communication device may establish a first type of connection by using a first wireless channel and establish a second type of connection by using a second wireless channel. The projector calculates one or more edges of the outside perimeter lines of the screen and of the specific projection area by detecting plural points in a captured image. At least one classifying algorithm is used to assign a known colorimetry class to an image of unknown colorimetry. , and the magnetic layer has on its surface a number of micro projections having a height of 10 to 20 nm measured by atomic force microscopy of 5 to 1,000100 \u03bcm2. The heat generation structures and the heat distribution structures are physically located to maintain the LED temperatures at substantially uniform temperatures. The system and method results in an interactive user interface which may be easily modified by altering the contents of the data store rather than altering and reindexing the media file.