TC Electronic PolyTune Mini Guitar Tuner

PolyTune Mini shows you the tuning state of all strings simultaneously by simply strumming your guitar, allowing you to get back to playing in a matter of seconds. PolyTune Mini is among the most precise tuners in the world, tuning with +/- 0.5 cent precision in chromatic mode and +/- 1 cent accuracy in polyphonic mode. Also, it automatically switches between chromatic and polyphonic modes depending on whether you strum all strings at once or pick each string individually.