Description Affordable no longer means compromise. Introducing the D’Addario Eclipse Tuner—the modestly-priced tuner with unparalleled performance. The Eclipse chromatic clip-on tuner offers fast, accurate chromatic tuning on and off the stage. The tuner features a full color vertical display, auto power-off, and pitch calibration in a discreet, compact design. The multi-swivel action allows for the perfect viewing angle and can be mounted in front of or behind the headstock on right- and left-handed instruments. Available in a variety of colors. CR2032 battery included. Quick, accurate tuning Full color display Limitless viewing angles Tuner calibration from 430 to 450Hz. CR2032 battery included Available in Yellow, Red, Green, Purple, and Blue D’Addario electronic tuners are designed by musicians for musicians featuring intuitive features, easy to read display's, and exceptional tuning accuracy.