9v power by a minijack.
This wah has nothing in mind, it works with a knob that rotates with a string that moves when you move the pedal. I assure you this is the right string. No problem the above.
The switch is activated very facielement unlike other models.

USE

Nothing to say.

SOUND QUALITY

Pedal rather silecieuse, even if the switch is suggesting slightly when it is applied.
Ct its not bad. has very quickly saturates even when some frequencies. If you want a nice wah on its clear should not be too hard when even attack.
slightly colored sound, but nothing Gnant well.

NOTICE GLOBAL

I bought used. I Reue in a sal state. I redid it a makeover, I go up with a true bypass.
A little, I who wanted the beautiful wah on clear, I have not found what I wanted. I do not do it again this purchase.