Donner ABY BOX Line Selector Pedal Guitar Effector Minnie

Convenient and compact size (42 x 93.5 x 52 mm) True bypass provides crystal clear sound and features LED indicators to indicate working status. Switch the signal circuit from A/B to Y or Y to A/B Uses DC 9V voltage converted by AC adapter, the barrel of the plug is positive and the middle is negative It can be used without a power supply, and the power supply is only for the indicator LED. 9V adapter required (sold separately)