Features: Clip-on tuner for chromatic/ guitar/ bass/ ukulele/ violin. Built-in rechargeable battery can be charged via the included USB cable easily. Adopts high definition 4-color VA screen bright and clear. Dual 360 degrees rotatable clip gives you the best viewing angle. Super fast and accurate tuning performance. Specifications: Model: AT-105 Color: Black Tuning Items: Chromatic(C)/ Guitar(G)/ Bass(B)/ Ukulele(U)/ Violin(V) Detection : A0(27.5Hz)-C8(4186.00Hz) : 430Hz-450Hz Tuning Accuracy: ±0.5 cent Power Supply: Built-in rechargeable battery 3.7V/ 110mAH Item Weight: 23g / 0.8oz Package Size: 10.3 * 5.5 * 3.5cm / 4.1 * 2.2 * 1.4in Package Weight: 52g / 1.8oz Note: The instrument showed in the picture is not included. Package List: 1 * Tuner 1 * USB Cable 1 * User Manual(English & Chinese)