Feature:1. Easy to use with 4 rotating knobs, adjust LEVEL/ SUSTAIN/ TONE/ ATTACK.2. With foot switch, easy to switch on/ off the effect pedal. True bypass is provided.3. Mini size and lightweight, with ring indicator light. Perfect for electric guitar and bass.4. Sturdy aluminum case, with reliable quality and great durability.5. Powered by 9V effect adapter (internal negative external positive, not included).Specification:Made of sturdy aluminum case, this effect pedal with 4 control knobs and a foot pedal switch is easy to operate and practical to use. Perfect accessory for electric guitar and bass.Features:Easy to use with 4 rotating knobs, adjust LEVEL/ SUSTAIN/ TONE/ ATTACK.With foot switch, easy to switch on/ off the effect pedal. True bypass is provided.Mini size and lightweight, with ring indicator light. Perfect for electric guitar and bass.Sturdy aluminum case, with reliable quality and great durability.Powered by 9V effect adapter (internal negative external positive, not included).Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.Specifications:Model: C-CS01/ C-CS02 (Optional)Color: GreenMaterial: Aluminum + PCBCircuit: Analog CircuitFootswitch: True BypassInput Impedance: 470KOut Impedance: 1KOutput Noise Level: <10mVCurrent Input: <150mAInput/ Output: 1/4″ Monaural JackPower Supply: DC 9V Center Negative Regular (Not included), >300mAItem Size: 112 * 58 * 19mm / 4.41 * 2.28 * 0.75inItem Weight: 200g / 7.05ozPackage Size: 13 * 7 * 5cm / 5.12 * 2.76 * 1.97inPackage Weight: 250g / 8.82ozPackage List:1 * Effect Pedal1 * User ManualPackage List:1 * Effect Pedal1 * User Manual