The D Addario Micro Headstock Tuner is a feature-packed tuner your audience will never see. This highly accurate tuner features a full-color display with four selectable viewing angles (two vertical two horizontal) in a housing that blends with the aesthetics of any instrument. The advanced tuning algorithms allow you to tune in noisy environments while the ratchet clamp securely attaches to the instrument to hang tight during live performance. It has an updated button hierarchy for easy intuitive control. The tuner calibration range goes from 410 to 480Hz. The improved piezo control allows for a better tuning experience in noisy environments. It’s so small convenient and accurate that you’ll want one for every instrument you own.