Markbass MB Octaver Raw, Effects Pedal for Electric Bass, Is the small version of the MB octave, Delivers fast tracking with clear sound even in the lower range, The levels of the original signal and the octave can be mixed in the desired ratio using the ""Dry"" and ""Oct"" controls, Status LED, Bypass footswitch, Input and output: 6.3 mm jack, Mains adapter connection: Coaxial connector 5.5 x 2.1 mm (negative polarity inside), Power supply with a 9-12 V DC power adapter (not included, suitable power supply: Art.#409939#), Current consumption: 35 mA, Dimensions (W x D x H): 45 x 95 x 50 mm, Weight: 157 g@+*Note:* Battery operation is not supported.