A sound pickup apparatus selecting one of a plurality of microphones and performing echo cancellation processing for a plurality of microphones with an echo canceller to output a sound. The method includes receiving a search query, performing a search of indexed information stored in the data backup system based on the search query, determining non-indexed information stored in the data backup system related to the search query, and returning results of the performing and the determining. The mobile device communicates with the access point via the communication subsystem for adjusting boundaries of an RF coverage region of the access point. Applied water pressure forces the valve into an energized position where the form of the valve directs water laterally in an aesthetically-pleasing pattern. A membrane material is deposited over the substrate and patterned. The numbers of respective kinds of LEDs used are selected so that the number of blue LEDs is not smaller than the number of red LEDs and the number of blue LEDs is not smaller than the number of green LEDs.