Cntl Knob is an affordable, compact, and easy-to-use pedal that allows you to remotely control devices with an expression control jack without using an expression pedal. It features two preset settings, typical of a standard expression pedal, that can be switched between with a footswitch. The EXP 1 knob controls the first expression setting, while the EXP 2 knob controls the second. Both knobs correspond to heel position at full counterclockwise and toe position at full clockwise. The selected knob's LED lights up, and the pedal can be powered using a power supply or a JP9.6DC-200mA (sold separately). To expand compatibility with other products, the Cntl Knob features a TRS +/- button, allowing you to match the polarity of the device being controlled. Includes a 6-foot (1.8m) TRS (Tip-Ring-Sleeve) cable. ●Specs Remotely control EHX pedals and pedals from other manufacturers that have an expression control jack without using an expression pedal.Compact body and simple parameters.Instantly switch between two preset expression values.TRS+/- buttons enable wide compatibility with various devices. 1/4 TRS cable included *Depending on the store, it may be necessary to order