A Femtocell base station has a determination means and a transmission means. Each thread of the female thread portion and the male thread portion of the threaded engagement device includes a crest, a root, a stab flank and a load flank. The reaction zone is operated under conditions providing an equivalent conversion of pure toluene in the presence of the catalyst within the range of 40-55%, resulting in a transalkylated product with a reduced polyalkyl benzene content and an enhance monoalkyl benzene content relative to the transalkylation feedstock. When transferring the preform from the opened injection molding tool to the transfer means, the preform is held on the outside of its neck continuation by a tool part of the injection molding tool and is thereby removed from the cavity.