The Electro Harmonix Single Expression Pedal allows the control of a suitably equipped effect device and thus expands the possibilities of creative expression. A TRS socket with switchable polarity ensures broad compatibility, while the operating range of the pedal can be adjusted via the reverse button and the range control. The Electro Harmonix Expression Pedal can withstand the toughest touring conditions without any problems thanks to the extremely robust yet lightweight housing made of glass-fibre reinforced nylon, which was developed for use in aviation.