Features:- Small and exquisite appearance, it is convenient to carry.- Auto tuning, two colors backlight, LCD display, it can provide excellent visibility.- 360 degree rotatable clip, it can adjust at your suitable angle, simple and practical.- With a clip, it is easy to fix on the instrument.- It can be used for the tuning of guitar, chromatic, bass, violin, and ukulele.- Auto powes in 5 minutes, energy saving .Type: TunerColor: BlackPower: 3V (CR2032 Lithium Battery)A4 Range: 440 HzTuning Type: Guitar, Chromatic, Bass, Violin, UkuleleTuning Range: A0(27.5Hz) -- C8(4186Hz)Tuning Accuracy: ±1%Tuning Way: ClipPackage Weight : 30 G / 1.06 OuncesPackage Dimensions (L*W*H) : 55*42*32 MM / 2.17*1.65*1.26 InchesRetail Packaging: Yes, Colored BoxPackage Include:1 x Tuner1 x CR2032 Lithium Battery1 x Instruction Manual