True-Bypass Switching Circuit: True bypass means that when the effect is off your guitar tone will not be affected at all. The true bypass circuit makes sure you have absolutely no tone loss or signal reduction through the chorus pedal in the off/bypass mode. Features: Three knobs + one toggle switch, wide adjustable range. RATE: This is a control for setting the speed of the internal oscillator. BLEND: This is a control for setting the mix of the modulated and the dry sound. Turn it up for a more intense effect. INTENSITY: This is a control for setting modulation depth. Turn it up for a deeper effect. INTENCE: two modes to choose Specifications: Model: BLUE OCEAN CHORUS Material: Metal Color: Blue Power Supply: DC 9V, Center negative Current Consumption: 40mA at 9V DC Input Impedance: Approx. 400K Output Impedance: Approx. 2K Item Size: Approx. 93*52*47mm / 3.66*2.05*1.85in Item Weight: Approx. 147g / 5.19oz Package Size: Approx. 11.3*6.3*6.3cm / 4.45*2.48*2.48in Package Weight: Approx. 184g / 6.49oz Packing List: 1 * Guitar effect Pedal