The Underecho is a simple but powerful reverb with two channels and a single footswitch. Tap once for channel one (the top knobs), tap again for channel two (the bottom knobs), tap a third time for OFF, or tap and hold to return back to channel one. Each channel has a decay length knob and a mix knob. It's that simple.
Specs:
+ Dual channel reverb
+ Size: 4-5/8" x 2.75" x 1.75"
+ Side Mounted Jacks
+ Soft switch with relay
+ Power & Polarity: 9V DC, center negative (standard). 19mA Draw. Power supply not included. Does not have a Battery slot.