Lehle Dual Expression Pedal With USB MIDIDouble down on expression with the Lehle Dual Expression Pedal, a two output magnet controlled pedal that connects to any effect pedal with an expression input (TS, TRS, or RTS) for an unmatched range of expression. Utilizing the Hall effect, this Lehle expression pedal utilizes magnets and digital potentiometers rather than mechanical mechanisms to significantly improve accuracy without the hassle of wear and tear from overuse. The dual outputs have