A method of directing sound in a mobile device equipped with a directional speaker includes determining a location of a target in relation to the mobile device, and adjusting a direction of sound output from the directional speaker toward the target, based on the location of the target. The acoustic energy generating means generates acoustic energy and is adapted for delivering an approximately uniform amount of acoustic energy to each unit of surface area on a substrate in a given time period when the substrate is rotating. The first end of the tubular connector may be threadably andor permanently attached within a manifold bore in a downstream surface of the manifold with the second end of the tubular connector being slidably received within a nozzle bore in an upstream surface of the nozzle or within a nozzle melt channel. The stored value or values represent the average response time of storage devices within the set. Particularly, in this liquid crystal display device, a shield pattern comprising a resin of a predetermined thickness and a color filter thinner than the predetermined thickness coexist with each other on a plane in the shield area in the vicinity of the inlet. On the carrying arms there is mounted, in a rotatable manner in each case, a guide roller which, in addition to positioning the semiconductor wafer vertically, also makes it possible for the semiconductor wafer to be positioned horizontally with the aid of an annular collar on a bottom section of the guide roller.