Darkglass Alpha-Omega, Effect pedal for electric bass, Preamp / distortion, Controls: Blend, Level, Drive, Mod, Bass, Mid, and Treble, Switch: Growl and Bite, XLR DI output, Power consumption: 30 mA, Power supply with 9 V battery or via 9 V DC power supply (2.1 mm x 5.5 mm power connection, polarity (-) inside, not included in delivery, e.g. Art. #409939#), Dimensions (W x D): 120 x 107 mm, Made in Finland