The overdrive effect is mellow,mild,smooth and exquisite, and the delay effect is quite good.True Bypass. Guitar High Gain Distortion Effect Pedal True Bypass Joyo JF-04sku:OT188Description 1.Guitar Effect Pedal2.High Gain Distortion3.Profession Guitar AMP and Effect Pedal4.CE and RoSH CertifyThe representation of the classic Tubescreamer, with JRC4588 chip.The overdrive effect is mellow,mild, ...