Features: Exquisite metal shell provides strong conservation for the pedal. True bypass design protects signal integrity when the pedal is not engaged. Normal and mid treble modes to change, enjoy beautiful music. With three knobs to freely adjust the tone and volumn, very convenient to use. LED light indicator shows the status of effect. Specificatioins: Brand: Rowin Model: LN-333 Mateial: Metal Input: 1/4in monaural jack (impedance: 1M Ohms) Output: 1/4in monaural jack (impedance: 10k Ohms) Power Requirements: AC adapter 9V DC (center minus plug) Current Draw: 6 mA Item Size: 7.5 * 4.5 * 4cm / 2.95 * 1.77 * 1.57in Item Weight: 146g / 5.15oz Package Size: 10.5 * 6.5 * 4.5cm / 4.13 * 2.56 * 1.77in Package Weight: 200g / 7.05oz Packing List: 1 * Effect Pedal