Greer Amplification Lightspeed Organic Overdrive Guitar Pedal Natural light to mild overdrive! Rich harmonics, smooth clipping! Can be set to sound like original signal (what some call "transparent")! True Bypass! Uses 9Volt battery or standard neg. center, 2.1mm power supply. Built with top quality components. Lifetime Warranty to the original owner! Hand-made in the U.S.A.