In the novel method for data transmission via a radio interface in a radio communications system, at least two data channels are assigned to one connection. The portable device includes a housing having a mating feature adapted to mate with a corresponding mating feature of the cradle. Of the four elements of a given pixel, a first subset of the elements are aligned along a first line, a second subset of the elements are aligned along a second line offset from the first line, and a third subset of the elements are aligned along a third line extending athwart the first line and the second line, wherein two of the elements are located on opposite sides of the third subset. The transistor also includes a collector region 342 over the buried region, a base region 396 within the collector region, and an emitter region 422 within the base region. In combination these traits set \u2018SAKURAI 01\u2019 apart from all other existing varieties of Catharanthus known to the inventor. A detachable base element may be incorporated for freestanding use.