Boss TU03 Clip-On Chromatic Tuner & Metronome

Musicians no longer need to juggle separate tuning and timing devices thanks to the innovative TU-03, which combines a chromatic tuner and metronome in one compact clip-on unit. This versatile tool attaches securely to virtually any stringed instrument's headstock, putting essential music functionality right at your fingertips. The device features five distinct tuning modes including standard chromatic operation plus dedicated settings for guitar, bass, ukulele, and violin that display string-based information for rapid tuning adjustments.

The TU-03's tuning capabilities extend well beyond basic pitch detection, supporting flat and double-flat tunings while offering adjustable reference pitch from 430-450 Hz. A built-in speaker can sound the reference pitch audibly, making it useful for group tuning situations. The large, backlit display with non-glare surface remains clearly visible in all lighting conditions, from dimly lit venues to outdoor performances in bright sunlight.

Rhythm practice becomes effortless with the integrated metronome featuring eight different patterns and ten beat variations to accommodate diverse musical styles and time signatures. The tempo adjusts smoothly from 30-250 BPM, and musicians can choose between audible beats through the speaker or silent visual timing using just the dynamic display. This flexibility makes the TU-03 particularly valuable during rehearsals and live performances where audible metronome clicks might interfere with other musicians. The rugged construction includes a spring-loaded clip with flexible padding that ensures stable, secure attachment across different headstock designs.