Tsakalis AudioWorks Phonkify Env. Filt./Wah/Octave, Effects Pedal for Electric Guitar, Envelope filter with two modes (smooth & nasty) combined with a special octave up and/or down effect, Expressions input socket for foot control of the frequency range of the envelope filter and wah effects (the envelope filter can be used as a wah with an expression pedal at the lowest sensitivity settings - expression pedal is not included), Controls: Volume, oct, frequency, sensitivity, in gain, Switches: Post / pre, nasty / smooth, LED: Effect on, octave, Footswitch: Effect bypass, octave bypass, Input: 6.3 mm Jack, Output: 6.3 mm Jack, Expression pedal in: 6.3 mm Stereo jack, Power supply connection: Barrel plug, 5.5 x 2.1 mm, negative polarity inside, Current consumption: 56 mA, Powered via a 9 V DC power supply (not included, suitable power supply: Article Nr. #409939#), True bypass, Dimensions (W x D x H): 112 x 70 x 50 mm, Weight: 282 g, Handmade in Greece@+*Note:* Battery operation is not supported