Andoer Andoer Mini Clip-On Automatic Digital Tone Style Tuner LCD for Acoustic Electric Guitar Bass Chromatic Violin Ukulele Comes with LCD screen, you can see the string No. and the note name from the screen. Tuning through vibration, helps you to find the accurate tune of your instrument. Clip-on and 360swivel rotation design, easy and convenient to use. The automatic shut-off function if no operation for about 3 minutes ensures that your battery works longer. Multi-instrument guitar tuner, great for electric, acoustic bass, guitars, violin, ukulele.Note: Battery is not included.