Clip-on tuner designed for Chromatic, Guitar, Bass, Violin & Ukulele. Adopts latest Cherub software for fast, accurate and stable tuning. Ultra-large LCD display shows clear tuning information(green: in tune; blue: flat or sharp). Dual-axis rotation design makes it easy to view from multi angles. Adjustable large clip allows you to clip it to different musical instruments easily. If no input signals within 5 minutes, it will shut-off automatically for energy saving. Tuning Method: Auto Tuning Items: Chromatic(C)/ Guitar(G)/ Bass(B)/ Violin(V)/ C Ukulele(Cu)/ D Ukulele(Du) A4 frequency: 430-450HZ Tuning Range: A0(27.5Hz)-C8(4186.00Hz) Power Supply: 1 x CR2032 Battery (not included) colour: silver Material: ABS + electronic Size: 67x37x31mm Package Contents: 1 x Guitar Tuner Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.