The PRS Wind Through the Trees dual analog flanger pedal is described as two flangers fighting each other, creating a sound reminiscent of wind whipping through the trees. With Manual, Depth, and Rate controls for each flanger, as well as global regeneration and added high-end, the Wind Through the Trees offers almost infinite tonal possibilities. In short, the Wind Through the Trees provides hours of fun for guitarists. Specifications Pedal type: Flanger Analog or digital: Analog Input: 6.35 mm instrument Output: 6.35 mm instrument Bypass switching: True Bypass Power draw: 22 mA Power source: 9 VDC power supply, regulated and/or isolated (not included) Battery: One 9 VDC (not included) Dimensions (W x D x H): 13.97 x 3.81 x 11.43 cm (5.5 x 1.5 x 4.5 in) Weight: 0.59 kg (1.1 lb)