This is a portable and universal tuner used for the tuning of guitar, chromatic, bass, violin and ukulele. Its tuning precision is up to ±1 cent. This tuner will be a good choice for you to keep your instrument in tune. Get one before supplies run out. Features: Small and exquisite appearance, it is convenient to carry. 360 degree rotatable clip, it can adjust at your suitable angle. With a clip, it is easy to fix on the instrument. Auto power off function, the device will turn off automatically if there is no signal present or operation in 3mins. It can be used for the tuning of guitar, chromatic, bass, violin and ukulele. Specifications: Color: Black Turning items：Chromatic, guitar, bass, violin, ukulele Tuning range: B0 - B7 A4 frequency: 440Hz Power: 1 * CR2032 battery (not included) Precision: ±1 cent Display size: 2.8 * 2cm / 1.1 * 0.8in Product weight: 21g / 0.8oz Package size: 7 * 5.5 * 5.5cm / 2.7 * 2.2 * 2.2in Package weight: 31g / 2.1oz Note: Remove the battery if you don't use it for a long period. Package List: 1 * Electric tuner 1 * User manual (English)