Selling to organize my equipment. I bought this new about 3 years ago and used it at home. It was excellent not only for tuning accuracy but also as a buffer. There are scratches on the screen, but there are no issues with use. Operation has been confirmed. 【High-Precision Tuning】 The PolyTune 3 Noir is a high-precision tuner for guitars and basses. It has the ability to tune multiple strings simultaneously, allowing for quick adjustments during performance. 【Compact Design】 This tuner features a compact and lightweight design, making it easy to carry and fit in any guitar case. It's perfect for use on stage or in the studio. 【Reliable Switch】 Equipped with an ON/OFF switch for easy operation. The TRUE/BUFFER switching function allows you to use it without compromising sound quality. - Brand: tc electronic - Model: PolyTune 3 Noir - Connection Terminals: 1/4 inch jack - Power Terminals: DC jack - Switch: ON/OFF switch - Functions: TRUE/BUFFER switching function