The data transcription processing unit is prepared. The bender wrench includes a wrench having a pair of first ends coupled to a plurality of head members that are positionable with respect to the handle. Embodiments of the internal retractor are adjustable. After engaging the threads in the screw hole, such as after the screw has been essentially completely inserted into the screw hole, the breakaway tab or non-threaded second portion of the elongated stem of the screw may be broken off at a breakaway and discarded. The sealant, the edge of the inner surface of the first substrate, and the edge of the inner surface of the second substrate form a space, and the flat display panel further includes a protection layer disposed inside the space so as to reinforce the structural strength of the flat display panel. Each of the voice adapters is expandable so daisy chain communication is possible to add additional layers of voice by simply acquiring additional voice adapters.