Fairfield Circuitry Hors d'Oeuvre Act. Feedb. Loop , Effect Pedal for Electric Guitar, Active Feedback Looper, Expands the possibilities of already used effect pedals, To create positive and negative feedback loops, Allows mixing a dry signal with any signal chain, the removal of the basic signal to hear only the effect signal, inverting the phase in the effect signal chain and mixing two signals in 2 different outputs and splitting a signal to 2 outputs, Controls: Dry, Wet, Feed, Switch: Positive / Negative Switching for Feed and Wet, LED: Effect on, Footswitch: Effect bypass, Input: 6.3 mm jack, Output: 6.3 mm jack, Power supply connection: barrel connector 5.5 x 2.1 mm, negative polarity inside, Current consumption: 30 mA, Power supply over 9 V DC power supply (not included - suitable power supply: Art.#409939#), True Bypass, Dimensions (W x D x H): 120 x 97 x 48 mm, Weight: 420 g, Made in Canada@+*Note:* Battery operation is not supported.