Various embodiments can utilize audiovisual andor interactive content to present to a caller when the caller’s call is placed into a call queue. Data obtained by the sensing device can be used in a feedback loop in the apparatus employing the device, to help control the operation of the apparatus in order to obtain consistent results. The porous negative electrode layer has a first peak at a pore diameter of 0. The lead also includes a plurality of conductive wires electrically coupling the plurality of electrodes to the plurality of terminals.