The D'Addario rechargeable Equinox chromatic clip-on-Tuner offers fast, accurate tuning for unparalleled performance on and off the stage. The tuner features 24 hours of tuning per charge, a full-colour vertical display, auto-power-off, and pitch calibration - all 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. 1 ft USB cable included.