Item Type: Guitar TunerMaterial: ABSBattery Required for the Product: 1 x button cellCR2032 (excluded)Tuning Items: Twelve well tempered, guitar, bass, violin, ukulele.A4 Frequency: 440HZTuning Error: 0.5 cents .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Quick Response: This tuner quickly senses the vibrational frequencies of music produced by different instruments, responding very quickly. 2Adjustable Angle: The 360 degree swivel clip design of this tuner allows you to adjust the desired angle for better and more convenient use. 3Accurate Tuning: The tuning of the tuner is precise and fast, and it can bring you the best music experience ever. 4ABS Housing: The ABS shell of the tuner is very light and wear resistant, which is convenient for you to carry out and use outdoors. 5Applicable Types: This tuner is designed for acoustic, chromatic and electric guitars, bass, ukulele, banjo, violin, and stringed instruments.