Can be used with the TC Helicon Play Electric/Acoustic as an external foot-switch to extend the looping/boost functions of the TC Helicon Play series. Comes with custom made TRS cable (1 foot in length). Excellent condition. Smaller footprint compared to the Switch-3 but does the exact same thing. A must have if you own a TC Helicon Play Electric/Acoustic and want to use it for live-looping. $85 for both. Contact for pics as I am having problems uploading them. 94319262 cheers.