An extended anionic surfactant having the general formula:RO\u2014n\u2014YZwherein R is a linear alkyl chain ranging from C6 to C36, a branched alkyl chain ranging from C6 to C36, or a mixture thereof;PO is a propyleneoxy group;Y is \u2014SO3, \u2014CH2CH2CH2\u2014SO3, \u2014CH2CH\u2014SO3, or \u2014CH2COO;Z is a cation; andn is 1 to 50. Diagnostic and therapeutic uses are described. A ceramic carrier is positioned below the silicon die, including a second array of bond pads disposed on the ceramic carrier and arranged in a substantially vertical alignment to the first array of bond pads. The weight of the molding can be well controlled and reduced to any desired degree. Such features may include a find feature that permits a user to determine which objects, including other wireless handset users, are located within a predetermined operating range of the wireless handset.