The tuner is great for beginners and professionals. It is fast， accurate， automatic and easy to operate. You would never play out of tune anymore with this tuner.<br><br><strong>Features:</strong><br>Mini clip-on tuner for chromatic/ guitar/ bass/ ukulele/ violin.<br>With LCD screen showing tuning information. (The screen will turn green when indicator is in the middle)<br>360° rotation， flexible to change angles for better viewing angle.<br>A good assistant for you to find the accurate tuning of your instrument.<br>With automatic shut-off function for battery power saving.<br><br><strong>Specifications:</strong><br>Tuning Items: Chromatic/ Guitar/ Bass/ Violin/ Ukulele<br>Signal Receiver: Clip<br>A4 frequency: 440HZ<br>Tuning Range: A0(27.5Hz) - C8 (4186.00Hz)<br>Tolerance: ±1 Cent<br>Power Supply: 1 * CR2032 Battery (not included)<br>Item Weight: 24g / 0.83oz<br>Package Size: 6 * 4.2 * 3.8cm / 2.4 * 1.7 * 1.5in<br>Package Weight: 35g / 1.2oz<br><br><strong>Note:</strong><br>The instrument showed in the picture is not included.<br>The battery is not included.<br><br><strong>Package List:</strong><br>1 * Tuner<br>1 * User Manual(Chinese !#!amp!*! English)