What's in the box:

Aroma AT-01A Rotatable Guitar Tuner Clip-on Tuner LCD Display for Guitar Bass Ukulele Violin (Standard)

The electric tuner is large clip suitable for different musical instruments. It is dual backlight, one button operation, dual-axis rotation design for flexible viewing angle.

Features:
Compact size clip-on tuner for guitar, bass, ukulele, violin and equal temperament.
One button operation, easy and convenient to use.
LCD display, 2 colors of backlight: green-in tune, white-off tuning.
Rotating design, allows you to have the best viewing angle.
To help you find the precise fit of your instrument.

Specifications:
Material: Plastic
Color: Black
Model: AT-01A
Adjustment Way: clip (tune by vibration)
Detection Range: A0 (27.5Hz)-C8 (4186Hz)
Adjusting Accuracy: 0.5 cent
Power Supply: 1 * CR2032 battery
Tuning Items: Guitar, bass, ukulele, violin, equal temperament
Item Size: 73 * 48 * 28mm / 2.87 * 1.89 * 1.1in
Package Weight: 23g / 0.81ounces
Package Size: 300 * 80 * 50mm / 11.81 * 3.15 * 1.97in

Packing List:
1 * Tuner
1 * User Manual