Embodiments of the present invention include an adjustable hairdryer permitting a user to rotate and vertically adjust the barrel portion of a hand-holdable dryer. The invention further discloses processes for preparing them, and novel intermediates therefor. In particular, the conversion stage performs a conversion from any input signal received on respective input terminals to an intermediate signal provided on an output terminal and suitable for reception by the hysteresis comparator. The plurality of RF ends has a plurality of streams for transmitting a wireless signal. When a user logs on to a system, the user’s set of buddy lists is presented to the buddy list system.