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. 

Features: 
Tuning through vibration to find the accurate tuning of your instrument. 
Supplied with LCD screen to show the string No. and the note name. 
Clip-on and 360°swivel rotation design, easy and convenient to use. 
Automatically shut off 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. 

Specifications: 
Tuning Mode: Auto 
Tuning Items: Chromatic, Guitar, Bass, Violin, Ukulele. 
A4 frequency: 440HZ 
Tuning Range: A0(27.5Hz) - C8 (4186.0Hz) 
Power Supply: 1 * CR2032 cell button (not included) 
Item Size: 4.8 * 3.2 * 2.8cm / 1.9 * 1.3 * 1.1in 
Item Weight: 25g / 0.9oz 
Package Size: 9.0 * 3.8 * 4.2cm / 3.5 * 1.5 * 1.7in 
Package Weight: 34g / 1.23oz 

Package List:  
1 * Mini Tuner 
1 * User's Manual(Chinese & English) 

Note: 
Battery is not included.