Empress Effects Reverb, Effects Pedal, Reverb, Stereo inputs and outputs, 35 Presets, Controls: Presets, Decay, Mix, Output, Low, Hi, Thing 1 & Thing 2, Control port input for expression pedal, external tap switch, control voltage, external audio input or MIDI, Selectable True or Buffered Bypass, Power consumption: 300 mA, Powerered via 9 V DC power supply (coaxial connector - negative pole inside, not included; corresponding power supply available: Article Nr #409939#), Dimensions (W x H x D): 145 x 57 x 95.3 mm