Imagine never having to buy a battery for your tuner again. Eco-friendly and convenient, the Flash™ clip-on tuner will keep your instrument in tune in a noisy environment and help save the planet at the same time. With /- 1 cent tuning accuracy and several commonly used tuning options rarely found on a clip-on tuner, you’ll never be in doubt about being in tune again. Featuring two 360o rotating swivels and a 120o hinge that allows viewing from every angle imaginable on your instruments headstock, you’ll always have the best view of the bright color LCD display. A micro USB recharging cable is included and one charge will last about 10 hours of continuous use but the auto shut-off feature will allow for 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.