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> Features: Helps you to find the accurate tuning of your instrument.<br> Supplied with a LCD screen to see the string No. and the note name. Clip-on and 360¡ãswivel rotation design、 easy and convenient to use. The automatic shut-off function when no operation for about 3 minutes ensures that your battery works longer. Multi-instrument guitar tuner、 great for electric、 acoustic bass、 guitars、 violin、 ukulele.<br> <br> Specifications:<br> Tuning Mode: Auto<br> Tuning Items: Chromatic、 Guitar、 Bass、 Violin、 Ukulele<br> A4 frequency: 440HZ<br> Tuning Range: A0(27.5Hz) - C8 (4186.0Hz)<br> Power Supply: 1 * CR2032 cell button (not included)<br> Item Size: 4.8 * 4.0 * 3.1cm / 1.9 * 1.6 * 1.2in<br> Item Weight: 26g/0.9oz<br> Package Size: 9.2 * 4.7 * 4cm / 3.6 * 1.9 * 1.6in<br> Package Weight: 33g / 1.2oz<br> <br> Package List:<br> 1 * Mini Tuner<br> 1 * User's Manual(Chinese !#!amp!*! English)<br> <br> Note:<br> Battery is not included.<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>