The PolyTune 3 Mini manages to pack all the pedal-tuning and tone-preserving power of TC's full-sized PolyTune 3 into a miniature pedal format. The TC Electronic PolyTune 3 Mini is just as fast, dependable, and intuitive as ever, boasting accuracy within 0.02 cents and delivering a no-nonsense approach to guitar and instrument tuning. Strum all strings* to see which ones are out of tune at a glance, or tune up one string at a time. The PolyTune 3 Mini automatically switches between mono and poly modes based on the incoming signal. And thanks to its built-in, high-quality-analog BonaFide Buffer (switchable to true bypass), the PolyTune 3 Mini can even improve your tone over extended cable runs. This means you get a bite, presence, and transient response that's much closer to plugging directly into an amp. But that's not all that's cool in the TC PolyTune 3 Mini. Alternate tuning modes make it fast and easy to explore new ways to craft your art, even in the middle of a frantic set. And an improved auto-dimming, 109-LED display makes tuning more comfortable in any environment, indoors or out.