Vahlbruch 6-PHI-4 Phase/Shifter; Effects Pedal for Electric Guitar; pure analog phase/shifter pedal with 4 and 6 hand-selected vintage 2N5952 transistors and silent MagTraB button. For 4-stage scipt logo paser sounds and 6-stage Univibe and Leslie-like sounds; Controls: Speed, Volume, Intensity; Switches: Stages 4/6; LED: Effect On, Modulationsgeschwindigkeit; Footswitches: On/Off; Connections: Input (1/4" Jack), Output (1/4" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 40 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): 115 x 70 x 48 mm (4,53" x 2,76" x 1,89"); Weight: 240 g (0,53 lbs); Handmade in Germany; Note: Battery operation is not supported