Features: 1.FOUR IN ONE: This is a four in one guitar effects pedal, come with delay, chorus, loop and overspeed effects 2.25MS?600MS ADJUSTABLE DELAY TIME: With repeat, delay and level control knobs, the delay time is adjustable from 25ms?600ms 3.GOOD CHORUS EFFECT: The analog bucket brigade technology produces good retro modulation effects; the chorus in this item has strict requirements on the power supply voltage and needs a better power supply 4.2 MODES OF OVERSPEED: There are 2 modes of overdrive, with drive, volume, bass and treble control knobs, useful and practical 5.FX LOOP: The send and return jacks allow you to use other pedals to expand the circuit board, very practical. The FX loop point is located between the overdrive and the delay module specification:Item Type: Synthesizer Guitar Pedal Material: Metal Color: Black Product Power Supply: DC 9V(not included) PackageList:1 x Synthesizer Guitar Pedal 1 x User Manual