Description de chez Thomann : Lovepedal Amp Eleven Big Box; Overdrive pedal for Guitar,; smooth, round, balanced, low-to-medium gain overdrive;, slight overdrive to mild distortion, great dynamic response and open sound; Independent Switching Between Boost Channel And Overdrive Channel; Connectors: Input, Output,; DC adapter Power Supply; 9V battery operation or 9V - 18VDC; power supply not included; True Bypass; Made in USA