It comes to you in a new and fresh state. Designed specifically for acoustic guitar ukulele and other acoustic instruments the chromatic NS Micro Soundhole Tuner remains perfectly concealed within the instrument s sound hole for discreet tuning. The non-marring universal mounting clip allows stress-free installation while the highly sensitive piezo transducer senses vibrations directly from the soundboard for fast and accurate tuning response. The bright multi-color display allows easy viewing in any environment. It s so small convenient and accurate that you ll want one for every acoustic instrument you own. D Addario electronic tuners are designed by musicians for musicians featuring intuitive features easy-to-read display s and exceptional tuning accuracy.