1Balanced Output Connection: The effector has a balanced output connection and a XLR audio interface for balanced signal output. 2Change the Gain: This is an effect that can change the gain between 20db, 0db and 20db. 3Grounding Switch: The effector can eliminate tinnitus or ground connection according to the landing situation of the connected equipment. 4Metal Shell: The effector with a full metal shell has a classic mini size, convenient and durable, and beautiful in design. 5Simple Design: The effector has a simple design and interface, high quality components, and sensitive knobs. Item Type: FuzzGuitarEffectsPedal Material: Metal Colour: Black Input Impedance: 1M Ohms Output Impedance: 1K Ohms Power Supply: 9V DC Power Adapter, Negative Polarity Inside and Positive Outside (The adapter is not included) 1 x Effector 1 x User Manual 1 x Hook and Loop Fastener 1 x Sticker