We are listing the SUNNY PREX booster from masatone, a well-known Japanese effector brand, which is also the signature overdrive pedal of Mikio Fujioka. The Pre-Gain control is distinctive: when set to the center, it provides a full-range boost; turning it to the right emphasizes the high-mids, and turning it to the left emphasizes the low-mids. After deciding the frequency band and texture you want to push with the pre-gain control, you set the boost amount with the boost knob (which lights up when turned on). *Operation confirmed, power cable not included.* - Model Name: SUNNY PREX - Color: Gold - Accessories: Box, manual included Guitar effector, booster, gain booster, clean booster, Tokyo Effector, Made in Japan, masatone