The ultimate in discreet tuning, the NS Micro Clip-Free Tuner features a full-color display and metronome in a housing that blends with the aesthetics of any instrument. The included clip-free mount attaches directly to instrument’s tuning machine (screws included) so tuner is always at hand and visible only to . D’Addario's intuitive electronic tuners are designed by musicians for musicians, and feature easy to read displays, and exceptional tuning accuracy.