Designed in cooperation with renowned inventor Ned Steinberger, the NS Mini Headstock Tuner allows you to tune better thanks to its virtually invisible, low-profile design, highly-sensitive piezo pickup and super-bright backlit display. Tune inconspicuously, quickly and accurately in dark or noisy environments. Only you’ll know you’re tuning! • Compact, low profile design stays concealed from your audience • Chromatic tuning automatically senses the note being played • Easy-to-read, multi-color display works well in well-lit and dark environments • 360 degree swivel for optimal right or left-handed viewing • Durable ratchet system for secure placement on headstock • Ultra-sensitive piezo pickup for quick response and highly accurate tuning • Fits safely in cases or gigbags… leave one on every guitar! • Choose to display notes as sharps or flats • Adjustable calibration between 430hz – 450hz • Automatic shut-off after 10 minutes of use preserves battery life • Trusted by stage and studio professionals