• Two-in-one capo and tuner, practical and easy to use. • A single button for all tuning functions. • Durable metal capo with rubber pads to protect the neck at contact points. • Color display: blue for out-of-tune note and green for in-tune. • Tuning detection accuracy: 0.5%. • Battery saver: auto-off screen after 30 seconds and full shutdown after 3 minutes of inactivity. • Accessories included: 3V CR2032 button-type battery.