A liquid crystal display includes a first substrate with pixel electrodes, and a second substrate with a common electrode facing the first substrate. Systems in place today require the servicing of a third party. One end of the clip may be an enlarged first end with an aperture capable of showing an ornament by allowing it to protrude through the aperture from the back and through the front of the enlarged first end, where the ornament has a backing portion preventing it from falling through the aperture. The machine tool incorporating the mechanical bending device can also include a mechanical cutting device so that workpiece parts can be both bent and machine cut in the same machine tool. The powering or receiving circuits of said piezoelectric elements consist each of a magnetic induction loop likewise comprised in the structure and capable of receiving from an external circuit or respectively transmitting thereto, electromagnetic signals. The differences in the play time points occurring between the speakers in a TDMA based multichannel wireless transmission system, are pre-compensated through the delay of the sound data in the WSDT.