I haven't confirmed its operation since I used it several years ago. It powers on, so I think there's no problem... I bought it a long time ago and have only used it about three times. Please purchase if you understand this. m(_ _)m It comes with a YAMAHA adapter. If you don't need it, I'll discount it by 1000 yen, so please let me know. The MINI3 is a portable modeling amp that supports guitarists from all angles, with its realistic and wide sound, compact size and battery-powered portability, and the highly designed look unique to VOX. It has 11 amp models, incorporating the modeling technology highly evaluated in the Valvetronix series. It covers everything from high-gain sounds, including new models with powerful distortion, to brilliant clean sounds, and also features a clean type with no distortion that supports line connections for keyboards, etc. It is also equipped with a variety of effects and a built-in tuner function. It also has a microphone input terminal and an AUX input terminal that can connect to MP3 players, etc., so with this one unit, you can practice guitar and also perform all-around street performances.