I'm selling these to organize my ever-growing collection of effects pedals. This is a clone of the Z.Vex Super Hard On, made based on its circuit diagram. It uses a center-negative 9V power supply and cannot be powered by a battery. I've tested it for this listing, and it's working fine. There's some scratchiness when you turn the knobs, but that's normal for the original. You could say this noise is proof that it's close to the original. I bought this used, in good condition, on Mercari about two years ago. I've only used it indoors at home since then. I haven't used it much, so I'd say it's in good condition, but please check the photos for the appearance. This listing is for the pedal only. The ZAOLLA cable is not included. Please understand that this is a used item in the condition described above before considering a purchase. I will carefully package it to be waterproof and ship it within 24 hours whenever possible. No need to ask for a comment before buying; immediate purchase is welcome, and priority will be given to those who buy immediately.