A trailer hitch having an adjustable hitch bar for coupling with a tow vehicle and a front member coupled with the adjustable hitch bar. The launch system includes an elongated launch rail with the carriage assembly, and a propulsion means for accelerating the carriage assembly from one end of the launch rail to the other. The nucleotide sequence comprises a first nucleotide sequence encoding a calcium binding domain, joined to a second nucleotide sequence positioned downstream of the first sequence. Moreover, the femto access point can be employed by the multiple UEs as a network hub and can be employed by the UEs to perform authentication to connect to a core network.