Fender Tread-Light Volume/Expression Pedal; Effects Pedal for Electric Guitar & Bass; Fender’s Tread-Light Volume/Expression Pedal helps you control your stage volume for enhanced dynamic performance and also acts as an expression pedal for use with other effects pedals and keyboards. Its special under-treadle LED provides easy visibility onstage under any light, and its durable chassis and treadle are crafted from lightweight anodized aluminum, with a rubberized pad ideal for the rigors of live performance. The switchable LED indicates when the pedal is active and ready for use; LED: Effect On; Footswitches: Volume/Expression; Connections: Input (1/4" Jack), Output (1/4" Jack); 250 kOhm; Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 20 mA; powered by a 9 V Battery or a 9 V DC Power Supply (not included); suitable optional Power Supply: Item: 409939; Dimensions (W x D x H): 110 x 250 x 80 mm (4,33" x 9,84" x 3,15"); Weight: 850 g (1,87 lbs)