BOSS TU-05 Clip-On Tuner

The TU-05 brings reliable and precise tuning to the head of your favorite stringed instrument with a large, high-contrast color display and four different tuning modes. A long-lasting rechargeable battery is built-in, eliminating the cost and hassle of battery replacement.

The TU-05 has a large color display with super high contrast that provides great visibility for quick tuning wherever you play, from dark scenes to bright sunlight. The sturdy, padded clip provides secure mounting on your instrument's head, and the display can be easily rotated to achieve the optimal viewing angle.

A built-in rechargeable battery provides up to 10 hours of continuous operation time, and there is an auto-off function that kicks in when the tuner is not active to conserve battery power. With the included cable, you can charge the TU-05 with the same USB adapter that you use with your phone or tablet.

With its versatile modes and quick-change design, you can tune a variety of instruments with the TU-05. Choose from standard tuning modes for guitar, 4- and 5-string bass and ukulele, or chromatic mode for alternative tunings and other stringed instruments. Flat tuning over a range of three semitones down is supported, perfect for players who like to tune low for a heavier sound. And with adjustable calibration from 431 to 449 Hz, you can set the tuner to a reference other than the standard 440 Hz standard if necessary.