MOSKYAudio Overdrive Guitar Effect Pedal 4 Mode Switch & Volume/Bass/Treble/Gain Controls Compact Portable Digital Overdrive Guitar Effector Effect Processor for Electric Guitar - TRANSPARENT DRIVE Features: Professional digital guitar effect pedal that based on Tim*y and ve*urm jan ray circuit.  (*=m) With volume, bass, treble, gain control knobs for you to adjust the parameter of the overdrive effect. 4-Mode selection knob to adjust at tim1, tim2, M, jan ray, each with independent indicator. DC9V 100mA power supply (center is negative polarity). Features of solid color, sturdy construction, good hand feeling, lightweight and durable. Small compact size pedal takes up little space on the pedalboard. A practical and easy-to-use effect pedal that will bring a richer expression to your performance and practice. Specifications: Material: Metal Control: Volume, bass, treble, gain 4-Mode Selection Knob: Tim1, tim2, M, jan ray Power Supply: DC9V 100mA - center is negative Item Size: 122 * 67 * 40mm / 4.80 * 2.24 * 1.57in Item Weight: 262g / 9.24oz Package Weight: 303g / 10.71oz Package Size: 14.7 * 7.8 * 7cm / 5.79 * 3.07 * 2.76in Package List: 1 * Effect Pedal