Equipped with a double circuit composed of two large flat electrodes (lower), intended for the overall stimulation of the perineal plane, and two curved side electrodes, intended for the undifferentiated stimulation of the two left and right branches of the pubococcygeal muscle. For best results, it is recommended to use both circuits. But the operator who is accustomed to using probes fitted with side electrodes only, and who has or wishes to use a single stimulation channel, can connect the device to only 2 connectors.