Features: Simple and up-to-date design, convenient to carry. Small compact product size, one button operation. Clip-on design with large opening for easily fixing on the instrument. Bright LCD screen display, accurate and fast tuning with cents visible. 2 color backlight, green-in tune, white-out of tune. Dual 360 degrees & 180 degrees rotatable clip for best viewing angle. Tuning items including chromatic, guitar, bass, ukulele and kalimba. Specifications: Material: ABS Tuning Item: Chromatic(C), Guitar(G), Bass(B), Ukulele(U), Kalimba(K) Detection Range: A0(27.5Hz)~C8(4186.00Hz) Tuning Cents Indicator Range: -50~50 cent Tuning Accuracy: 0.5 cent Power Supply: 1 * CR2032 button battery (NOT included) Item Size: 82.4 * 34 * 30.5mm / 3.24 * 1.34 * 1.20in Item Weight: 20g / 0.71oz Package Weight: 36g / 0.71oz Package Size: 6.5 * 5.4 * 3.5cm / 2.56 * 2.13 * 1.38in Packing List: 1 * Tuner 1 * Manual (English)