Seymour Duncan Shapeshifter Stereo Tremolo, analog stereo tremolo effect pedal with tap tempo, digital tremolo timing, controls for wave form, symmetry, intensity, speed/ratio, phase control for mixing right and left channels, transparent control blinks in selected speed, true bypass, footswitch for effect on/off and tap tempo, status LED, power supply optional #108096 (not included), dimensions (W x D x H): 114 x 152 x 82 mm, weight: 410 g, Made in USA