Feature:1. The tuner features accurate digital tuning, LCD with 2 backlights showing current tune, white for flat/sharp and green for in tune.2. Clip-on design let it firmly clip on instrument, 360 rotatable head can be adjusted to any direction for clear reading when tuning.3. Powered by a CR2032 button cell(Not included), it will turn off automatically with 5 minutes idle operation, more power-saving.4. Can be widely applicable for chromatic, guitar, bass, ukulele(C/D), violin and more instrument tuning.5. This tuner is a great assistant for you to keep your instrument in right tune, suitable for daily use.Specification:Features:The tuner features accurate digital tuning, LCD with 2 backlights showing current tune, white for flat/sharp and green for in tune.Clip-on design let it firmly clip on instrument, 360° rotatable head can be adjusted to any direction for clear reading when tuning.Powered by a CR2032 button cell(Not included), it will turn off automatically with 5 minutes idle operation, more power-saving.Can be widely applicable for chromatic, guitar, bass, ukulele(C/D), violin and more instrument tuning.This tuner is a great assistant for you to keep your instrument in right tune, suitable for daily use.Specifications:Color: BlackBrand: LINGTINGModel: LT-01Tuning Items: Chromatic/ Guitar/ Bass/ Violin/ Ukulele C/ Ukulele DA4 frequency: 440HZTuning Range: A0(27.5Hz) - C8 (4186.0Hz)Power Supply: 1 * CR2032 Battery (not included)Item Weight: 18g / 0.6ozPackage Size: 5 * 4 * 3cm / 2 * 1.6 * 1.2inPackage Weight: 25g / 0.9ozPackage List:1 * Clip-on Tuner1 * User Manual (English & Chinese)Package List:1 * Clip-on Tuner1 * User Manual (English & Chinese)