YAMAHA guitar/bass auto tuner YT-2000. - Operation confirmed - Compatible with both guitar and bass - AUTO / MANUAL switching available - INPUT / OUTPUT terminals - Battery or DC9V power supply compatible There are minor scratches and signs of use on the main unit, but it can be used without any problems for playing and tuning. Please purchase only if you understand that this is a used item. For operational checks, a simple battery (new, no-brand) is currently installed. You can use it immediately upon arrival, but we recommend replacing the battery if you plan to use it for an extended period. A printed copy of the instruction manual from the internet will be included. ★ The color in the photos may differ slightly from the actual color. ★ Please understand that this item is stored at home and will be shipped in simple packaging (reused). ★ Immediate purchase OK ★ Free shipping, Mercari delivery, anonymous shipping