GFI System Rossie Filter, Effect pedal for electric guitar & bass, Dynamic multi-filter pedal, 3 Filter modes: Envelope filter, step filter & manual filter, Each filter mode provides 4 filter types: low-pass, band-pass, high-pass and peaking, Adjustable sweep range and resonance width, Mix control allows mixing of wet and dry signal, Controls: Param. Range, Mix, Modes, LED: Effect On, Footswitch: Engage & Ramp, A/B & Tap, Input: 6.3 mm jack, Output: 6.3 mm jack, Mains adapter connection: Hollow female plug 5.5 x 2.1 mm, negative pole inside, Power supply via 9 V DC mains adapter (not included, suitable mains adapter: Art. #409939#), Power consumption: 110 mA, Dimensions (W x D x H): 183 x 305 x 140 mm, Weight: 300 g@+@+*Note:* No battery operation possible