Strymon ZelZah Dual Phaser, Effect pedal for electric guitar, 2 Completely independent phasers that can be operated separately: in series, in parallel or splitted, 6-Stage phaser with smooth transition from phasing to flanging to chorus, all with adjustable resonance, 4-Stage phaser with 3 sweep modes: Classic (traditional rising and falling LFO with voicings that change character with DEPTH knob setting), Barber (constant rising LFO with +ve or -ve polarity) and Envelope (touch-sensitive envelope), independently accessible via footswitch and set of controls, True Bypass, 'Voice' control morphs between phasing and flanging/chorus, 6-Stage knob: Speed, Depth, Voice, 4-Stage control: Speed, Depth, Mix, Switch: Input Mono/Stereo, Switch 6-Stage: Resonance, Switch 4-stage: Sweep, LED: 6-stage on, 4-stage on, Foot switch: 6-stage bypass, 4-stage bypass, Mono/stereo input: 6.3 mm stereo jack, Mono/stereo output: 2x 6.3 mm stereo jack, EXP In: 6.3 mm stereo jack, EXP/MIDI: Connection of a Strymon MiniSwitch (art. #404546# - not included) for selecting a favourite setting, a Strymon MultiSwitch Plus (art. #465346# - not included) for access to 3 presets or a MIDI controller either to a Strymon Conduit (art. #521393# - not included) or a Strymon MIDI EXP cable (not included) for access to 300 preset memories, Mains adapter connection: Hollow female plug 5.5 x 2.1 mm, negative pole inside., Power supply with a 9 V DC mains adapter (included), Dimensions (W x D x H): 178 x 114 x 44 mm, Made in USA@+@+*Note:* No battery operation possible