Building on the 20-year legacy of the famous Boss BF-2, the BF-3 flanger pedal gives guitarists and bassists an updated version of the classic Boss flanger with the thickest stereo flanging sounds ever. Two new modes (Ultra and Gate/Pan) create stereo flanging with incredible depth--even Slicer-type effects and sounds that seem to "swirl" around the listener. An instant classic. Boss' best flanging effects in a compact pedal New Ultra and Gate/Pan modes for ultra-fat flanging and futuristic slicer-type sounds, respectively Momentary mode turns flanging on instantly Tap tempo adjustable via pedal Independent Guitar and Bass inputs and stereo outputs Boss 5-year warranty Specifications Nominal Input Level -20 dBu Input Impedance 1 M ohm Nominal Output Level -20 dBu Output Impedance 1 k ohm Recommended Load Impedance 10 k ohms or greater Bypass Buffered bypass Controls MODE knobRATE knobDEPTH knobRES (Resonance)/MANUAL knobPedal switch Indicator CHECK indicator (Used for indication of check battery) Connectors GUITAR IN jack: 1/4-inch phone typeBASS IN jack: 1/4-inch phone typeOUTPUT A (MONO) jack: 1/4-inch phone typeOUTPUT B jack: 1/4-inch phone typeDC IN jack Power Supply Alkaline battery (9 V, 6LR61)AC adaptor (PSA series: sold separately) Current Draw 60 mA Expected battery life under continuous use Alkaline: Approx. 4 hours*These figures will vary depending on the actual conditions of use. Accessories Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")Registration CardAlkaline battery (9 V, 6LR61) Options (sold separately) AC adaptor: PSA series Size and Weight Width 73 mm2-7/8 inches Depth 129 mm5-1/8 inches Height 59 mm2-3/8 inches Weight (including battery) 425 g15 oz