The MXR Tap Tempo Switch is a great way to control the tempo of many different delay and modulation effects units. Its tip/ring configuration works with any instrument or pedalboard cable to connect easily to your pedals. It comes in a tiny housing that will sit snugly between the other pedals on your board. And it is built extremely ruggedly to take years of stomping without being damaged. • MFSKU M199 • UPC 710137087774