Imagine never having to buy a battery for your tuner again. Eco-friendly and simple Flash clip tuner ™ that tunes your instrument even in a noisy environment and at the same time helps save the planet. Thanks to the tuning accuracy of / - 1 cent and several commonly used tuning options, which are rarely found in the clip tuner, you will never doubt whether you will be tuned. With two 360 ° swivel joints and a 120 ° hinge that allows you to watch from any angle you can imagine on your instrument's head, you'll always have the best view of the bright color LCD display. The package includes a micro USB charging cable and one charge lasts about 10 hours of continuous use, but the auto power off function allows maximum battery life. Settings include: Chromatic, Guitar, Bass, Ukulele and Violin. Tuning modes include: ½ step flat, full step flat and open G, D and E.