A pry bar comprises a shank portion and an integral U-shaped prying hook portion that is free of defined flats and instead has a continuous cam surface extending all the way from the apex of the U-shaped portion along the outer leg to the tip end. According to a first aspect of the present invention, a wireless device performs inquiries at a random interval, and performs an inquiry scan and a page scan when not performing the inquiries. The method further includes directing at least one fluid jet at the opening of an exhaust lumen or target incorporated into the device and using the jet to provide a localized negative pressure which entrains material into the jet for break-up. At least one of the rotational and stationary components includes a core formed of a magnetically conductive material and a flex circuit coupled to the core.