1、Effect Pedal: Ensuring increased volume without colouration, making your playing more attractive. 2、Free Control: The 2 band EQ individually controls the adjustment of both high and low frequencies. 3、Easy to Adjust: Comes with 3 knobs to better control BASS, TREBBLE and DRIVE with high accuracy. 4、Smart Design: Comes with hardware pass through design to promise low loss in the BOOSTER effect. 5、Metal Shell: Sturdy metal shell with pretty white colour enables excellent durability for long use. 1 x Guitar Effect Pedal1 x User Manual Item Type: Guitar Effect PedalMaterial: MetalColour: WhiteInput Impedance: 1 megohm. Output Impedance: 10 kilo ohms. Product Power Supply: External 9V AC power adapter (not included in the product).