Old Blood Noise Endeavors Procession, Effect pedal, Reverb, 3 Modes: Flange / Filter / Tremolo, Combines reverb with various modulation effects: Reverb + Flanger/Reverb + Resonant Filter/Reverb + Tremolo, Expression control of either Reverb Decay or Modulation Rate, Freeze function, True bypass, Controls for speed, depth, mix and reverb, Toggle switch to select between modes, Internal DIP switch to select Expression Control Parameter (Reverb/Speed), Internal output trim potentiometer, Bypass foot switch, Hold foot switch, Status LED, Metal casing, 6.3 mm Mono jack in/out, 6.3 mm TRS EXP input, Power supply via 9 V DC power supply unit (2.1 mm x 5.5 mm hollow plug, negative polarity, not included - suitable power supply unit available under Article number #409939#), Power consumption: 46 mA, Dimensions (L x W x H): 126 x 73 x 57 mm, Weight: 430 g, Made in USA@+*Note:*Battery operation is not possible.