Feature: Classical digital delay effect.1 second delay. True bypass. Powered by DC adapter.TIME KNOBThis knob adjusts the delay time.MIX KNOBUse this knob to adjust the mix between the dry signal & the effect sound.F.BACK KNOBThis knob adjusts the amount of delay returned to the input of thedelay line. The higher the setting, the more repeats you get. Package Included:1 X Guitar Pedal