Boss TU3 Chromatic Tuner Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Guitar and Bass Tuner Pedal with High-Brightness Mode for Outdoor Visibility， 21-segment LED Meter， Drop Tuning Support， and Guitar/Bass Mode </span></li><li><span class="a-list-item"> Stompbox-style guitar tuner pedal21-segment LED meter with brightness controlHigh-brightness mode enhances meter visibility outdoorsAccu-Pitch sign function provides visual verification when tuning is complete </span></li><li><span class="a-list-item"> Chromatic and Guitar/Bass mode (tune by string number， with support for 7-string guitars and 6-string basses)Flat tuning is supported with Guitar Flat mode， which allows for Drop tunings up to 6 semitones below standard pitch </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Eya00KSIL.jpg" noproxy>