Compression Modes: Multiple,Gain Adjustment: Up to 15dBDescription:It can be used to replace your original effect pedal for SP compressor.This compression (one of the historical compression effect units recognized by countless guitarists) gives you a very wide range of sound quality experience, from vintage effects to more touches, all the way to exaggerated modern styles, as you explore , And many more, just use its plasticity, you can achieve everything through simple operations, dry and wet mixing, knobs, up to 15dB gain, and internal DIP switch for adjusting the attack, to get better Fine tuning of the tone! Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.