From Greer:
The Lightspeed Organic Overdrive is a very natural sounding overdrive. Why "organic"?  Well, simply put, it's the clearest, most natural feeling, and best overdrive we've heard for the player looking for a natural drive tone.  Blending with the tone of the guitar and amplifier, this pedal has rich harmonics and complex but smooth clipping. The Lightspeed Overdrive is sensitive to pick attack and has a different "feel" than other overdrives. The Lightspeed can be set to be "transparent," but can also drive your signal to the edge. 
• On tour with Peter Stroud (Sheryl Crow, and others), Alex Weeden (Miranda Lambert), Drew Shirley (Switchfoot), J.B. Brisendine (Brother Hawk), Casey Meyer (Jim Quick and Coastline), Jason "JJ Boogie" Reichert (Arrested Development), James Duke, Matt Goldman (Glow in the Dark Studios), JR Mead (Kutless), Jordan Peters (Lauryn Hill), and more!
• Natural light to mild overdrive!
• Rich harmonics, smooth clipping!
• Can be set to sound like original signal (what some call "transparent")!
• True Bypass!
• Uses 9-Volt battery or standard neg. center, 2.1mm power supply.
• Built with top quality component
• 5-year to the original owner!
• Pedals are currently built to order, and will ship within 1-2 weeks of your order and payment