Joyo JF-325 molo-Trem; Effects Pedal for Electric Guitar; Ironman Series; flexible and easy to use tremolo; offers classic tremolo sounds as well as modern “stutter” sounds; light and compact; Controls: Rate, Depth, Wave; LED: Effect On; Footswitches: Effect Bypass; Connections: Input (1/4"" Jack), Output (1/4"" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 20 mA; powered by a 9 V DC Power Supply (not included); suitable optional Power Supply: Item no. #409939; True Bypass; Dimensions (W x D x H): 43 x 73 x 50 mm (1,69"" x 2,87"" x 1,97""); Weight: 220 g (0,49 lbs); Note: Battery operation is not supported