Thank you for viewing. I purchased this last year and have only used it for practice at home, so it's in excellent condition with no noticeable scratches. Power-on confirmed. No adapter included; only the items in the photos are for sale. Please understand this before purchasing. ■ Guitar Multi-Effects Processor ・ BOSS flagship-level sound quality condensed into a lightweight and compact body. ・ Edge-less design that won't scratch cases or instruments when carried in a soft guitar case. ・ Operates for approximately 7 hours on 4 alkaline AA batteries, making it suitable for street performances. The GT-1 features a high-quality sound engine inherited from the GT-100. It delivers incredibly high-quality sound that belies its small and lightweight body. It's equipped with a wide range of effects, from vintage effects like the BOSS OD-1 to cutting-edge MDP technology effects like TERA ECHO and A-DIST, allowing for diverse sound creation. It also includes an acoustic guitar simulator and a guitar simulator function that allows you to change pickup types, further expanding the possibilities of sound creation. Like the effects, the amps are carefully selected, from vintage masterpieces to modern high-end models, and BOSS's original models that achieve characteristics not found in real amps, with a focus on sound quality and playing feel. It can accommodate a wide range of musical genres and song developments. It also features a phrase loop function familiar from the LOOP STATION series. You can layer backing and solo performances while switching between amp and effect tones, using it for personal practice, or creating unique solo performances and thick ensembles. It achieves an amazing level of weight and size reduction. Of course, the robustness of BOSS products, trusted in numerous professional settings, remains unchanged, so you can carry it anywhere with confidence. The edge-less design, with rounded edges on the metal parts, makes it easy to put in and take out of a soft guitar case, and it's less likely to scratch, even when carried with your guitar from practice to performance. It uses a dual power supply system. It can be powered by an AC adapter (PSA-100 ※sold separately) and also operates for approximately 7 hours continuously on 4 alkaline AA batteries, making it useful in places where it's difficult to secure a power source, such as on the street.