I purchased this online when it was first released to practice bass. I used it a few times, but it didn't suit me, so I've kept it stored at home for a while. I'm selling it now to someone who can use it, as I'm organizing my equipment. I think it's in very good condition, but it is a used item that has been in someone's hands, so please refrain from purchasing if you are concerned about minor details. Thank you. ---- The KATANA:GO is a portable headphone amplifier for guitar and bass. - Brand: BOSS - Model Name: KATANA:GO - Type: Headphone Guitar Amplifier - Accessories: Quick Start Guide, Cable Thank you for looking.