Mint. Never been used. Gibson introduces the Min-ETune, a mechanical tuner that automatically tunes your guitar to a variety of tunings. Gibson incorporated a mechanical tuner into the designs of their popular guitars including the Les Paul, SG, Explorer, Flying V and Les Paul Jr. A nifty feature of the Min-ETune is its Reference Tuning, it can adjust your tuning to match another instrument's imperfect tuning, very useful in situations where there are two or more guitar playing in harmony. The practical applications of auto-tuning are real and it will definitely benefit players that use multiple tunings in their live performances. With a Min-ETune, you no longer need to carry multiple guitars with different tunings and you will save a lot of time with its quick tuning. You get almost the same convenience that keyboard players enjoy, not worrying about intonation and easily adjusting the tuning with a push of a button.