The electro harmonix single expression pedal single output is a versatile and affordable pedal designed to control expression parameters on any device. Whether you want to control your guitar effects keyboards or other midi devices this has got you covered. Featuring a single output design the ehx allows for precise control over your expression. The range knob lets you fine tune the sweep of the pedal while the reverse button allows you to flip the sweep direction to suit your preference. With the trs polarity switch you can easily change the connections to the jack ensuring maximum compatibility with a wide range of gear. Whats more this model is built with advanced polymer construction ensuring it is not only durable but also lightweight making it perfect for gigging musicians. So if youre looking for a reliable and versatile expression pedal that wont break the bank the single expression is the perfect choice for you.