DigiTech Mini Expression Pedal is a compact and durable pedal that allows you to control various effects parameters in real-time with your foot. It features a 1/4-inch TRS expression input, a 1/4-inch TRS output, and a rugged metal housing. The pedal's small size makes it easy to fit on any pedalboard, and its smooth, linear response provides precise control over your effects. Use the Mini Expression Pedal to control volume, wah, panning, or any other parameter that can be assigned to an expression pedal.