Himmelstrutz Under Over - Stout Of The Art Multi Harmonic Booster Pedal - Preowned in used condition and fully working order. Comes with Six months Guitarbitz warranty. 

Under Over tips & tricks: It might take some time to get a grip about all possibilities in this pedal. We encourage you to try several different combinations of the outboard control settings as each will impart its own unique character on your tone. Also, try to adjust the volume control of your guitar and you will see how "responsive Under Over is. Why not also try a distortion box (FETTO) before or after Under Over! Our wish is that you’ll like the Under Over experience! Every pedal is 100% handmade, tested and carefully adjusted by the original designer in Sweden. If you happen to remove the bottom plate and and internal controls, remember these parts are not meant to be adjusted by the user—because of functional/warranty reasons. The “Treble” trimmer is a Set & Forget thing. More information about Under Over, and collaborating products, is available at www.himmelstrutz.com. Even though the power consumption is low (3-4 mA) the battery needs to be replaced when the LED gets weak or if the tone changes. To change the battery, unscrew the four screws on the bottom plate, bring out the old 9 volt battery (6LR61) and replace it with a new. Then attach the bottom plate with the four screws. Never use Under Over without the bottom plate! If you play loud, always use ear protection. It’s easy to forget, but in the long run not a good idea! Unplug the input cord when not using the pedal—if powered by a battery—to save the battery (and environment). Do your best to have fun, with ear protection if needed.