A voice signature transaction system for use in electronic commerce comprises user terminals, a server, and a data network. The cluster includes a bundle of main lead wires disposed to extend straight along said transverse member, and the distributor box distributes electric power and signals transmitted by the wire-integrated cluster. A capacitor element connects between the bit line and an input end of the output circuit. Locking mechanisms secure the hinges to provide a desired angular relationship between support members connected by the hinge.