Abstract: A stimulating medical device, comprising a plurality of electrodes, and a current source and a current sink connected to each one of the electrodes. The medical device also comprises a calibration arrangement configured to compare the current provided by a selected one of the current sources to the current sunk by a selected one of the current sinks, and configured to adjust an operational parameter of at least one of the source and sink based on said comparison such that the current provided by the selected current source is substantially the same as the current sunk by the current sink.

Abstract: A hearing prosthesis and method for same are disclosed wherein a smaller wireless microphone component transmits audio signals to an external component of the medical device. The external component processes the received audio signal(s) to generate stimulation data. The external component is detachably connected to a coil that transmits power and the stimulation data, via magnetic induction, to an implanted component. The implanted component applies stimulation to a recipient in accordance with the received stimulation data.