A mobile communications device includes a display, a plurality of sources which may comprise at least one microphone andor at least one camera, a wireless communications module, a main processor, and a secured processor inaccessible by the main processor. The transducers may be mounted together and may include either the same transducer type or different transducer types, depending on the desired applications. The linkage is operable to unfold so as to pivot the free ends of the first and second brake arms away from each other, thereby increasing the distance between brake shoes on the first and second brake arms for removal or remounting of the wheel. Using the information obtained for different wavelengthsenergies of X-radiation, the phase shift induced by the object can be reconstructed. In one embodiment, the lifting mechanism employs wedges for closing the clamps, and in another embodiment the lifting mechanism employs linkages for closing the clamps.