The S705 controls the gate length of any incoming gate/trigger via a knob and CV control. The module has two modes, Time and clock, toggled by a switch. In time mode. The knob+CV final value indicate the gate length in seconds (from 0 to 4 sec). In clock mode, the module expects an incoming clock, it senses the clock length (the time between two clock pluses). The knob+CV final value indicate the gate length in percentage of the clock length (from 0% to 100%).