1、Mini and portable, and hard metal shell is stable and durable 2、With 6 konbs, you can freely adjust it for booster effect you desire 3、The true bypass design can minimize the signal loss to help you create best performance 4、​The LED indicator shows the working state, powered by 9V battery or AC 9V adapter(not included), convenient to use 5、Standard 6.35 mm side output and input jack fits for most connectors. Classic distortion tone effect pedal for your guitar Features: Mini and portable, and hard metal shell is stable and durable. With 6 konbs, you can freely adjust it for booster effect you desire. The true bypass design can minimize the signal loss to help you create best performance. The LED indicator shows the working state, powered by 9V battery or AC 9V adapter(not included), convenient to use. Standard 6.35 mm side output and input jack fits for most connectors. Specification: Condition: 100% Brand New and High Quality Material: Metal + Electron Color: As picture shown Jack: 6.35 mm / 0.25 inch Power Supply: External 9V battery or AC 9V adapter Dimensions(L x W x H): Approx. 120 x 95 x 55mm / 4.72 x 3.74 x 2.16inch Weight: Approx. 438g Packing List: 1 x Guitar Effect Pedal 1 x Cable 1 x Sticker 1 x User Manual Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.