The Ernie Ball Fast Pitch Clip-On Tuner delivers fast, accurate tuning in a compact, no-frills design. Built for guitarists, bassists, and other stringed instruments, its bright LCD screen is easy to read in any lighting, while precise chromatic tuning keeps your instrument perfectly in pitch. With simple one-button operation, automatic shut-off, and a secure 360-degree rotating clip, the Fast Pitch Tuner makes tuning quick, intuitive, and distraction-free. Powered by a CR2032 battery (Included). Part number P09644.