KORG Pitchclip Tuner for Limited Edition Continuous Adjustable Clear CLR 2+ Clip-on Guitar/Bass, Color, 18-Hour Operation, Angle, Left-Handed

A clip-on tuner that can be easily attached to the headstock of a guitar or bass. Supports high-precision tuning of ±0.1 cents. It can also be attached to the back of the headstock or used with left-handed guitars/basses. One coin-type lithium battery (CR2032) allows for approximately 18 hours of continuous use.