This device is an intubation tube with gold electrodes in his surface, level of the vocal chords, two electrodes for each vocal cord, these electrodes get connected with gold cables to electromyography that generates the electrical pulses. We can stimulate each vocal cord in individual way or both. The pulse generated on the vocal chords travels by the nerve vagus to the cerebral cortex where potential can get registered. In the scalp we register the signals with electrodes of surface conventional.