Package Include:1x Guitar effect pedalSpecifications:Features: - Bias, Sens, Decay, and Reso; 4 controlling knobs are accurate and sensitive. - Sensitive response and accurate sound feedback.- excellent dynamics as a filter-type effect, when you step on the switch, it will enliven your play.- Wow Wah should be the priority if you want to add something up-to-date into your music.- Great timbre from Joyo Audio. Whether you access it directly into the mixer, preamp audio interface, or a guitar amp, it will have a good performance. - True Bypass Construction. True bypass design can minimize the tone loss and ensures that your guitar signal remains of highest quality.Notice: The included battery will be taken out because of the Air Shipping Policy for safety.Material: Zinc AlloyColor: PurpleEffect: Wow WahInput Impendance: 500kOutput Impedance: 10kWorking Current: 22 mAPower: DC 9V Adapter ( Negative Center )(NOT INCLUDED)Product Weight : 217 G / 7.65 Ounces