Features:Octave effect pedal with pitch shift up and down 1 octave and 2 octave to get multiple octave combinations.You can get monosyllabic and polysyllabic transposing octave effect accurately.The simplified electronic organ effect can be obtained by adding and subtraction of the octave and dry sound combination.With control knobs to adjust octave volume, dry voice, octave drop and rise.True bypass footswitch for switching between octave effect and bypass status; aluminum alloy shell, compact and solid design.Specifications:Working voltage: DC9VChip inner voltage: 1.8VChip outer voltage: 3.3VADC SNR: 90dBDAC SNR: 100dBPower Supply: DC 9V power adapter or 9V battery(both are not included)Item Size: 6.5 * 12.3 * 3.3cm / 2.6 * 4.8 * 1.3inItem Weight: 285g / 10.1ozPackage Size: 14.5 * 9 * 6cm / 5.7 * 3.5 * 2.4inPackage Weight: 400g / 14.1ozNote:Power adapter and battery are not included.Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 * Effect Pedal1 * Battery Cable