The Electro-Harmonix Holy Grail is a compact digital reverb guitar pedal with classic Spring Reverb and Hall Reverb emulation along with the haunting "Flerb" setting (a mix of flange and reverb) which Electro-Harmonix claims will allow you to reach enlightenment!

* Reverb knob for wet/dry mix

* 3-position slide switch for selecting reverbs

* Power supply included

* Plywood storage box