Features: Take your tone an octave up and add some fuzz too! A mid-cut switch gives you control over your tone. Watch what happens when you put some fuzz on your chops, and then take it up an octave. True bypass design minimizes tone loss. Aluminum alloy casing with stoving varnish finish. Specifications: Model: JF-12 Color: Green Material: Aluminum alloy Input impedance: 500K Output impedance: 10K Running current: 4ma Power: 6F22 9V battery / DC 9V adapter (Neither included) Item size: 12 * 9.6 * 5.7cm / 4.7 * 3.8 * 2.3in Item weight: 400g / 14.0oz Package size: 13 * 10.4 * 6.2cm / 5.1 * 4.1 * 2.4in Package weight: 435g / 15.3oz Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual (English & Chinese)