Features: * 360 degree rotatable clip， adjust suitable angle， simple and practical. * Small and exquisite appearance， it is convenient to carry. * Super bright back light， LCD display， excellent visibility. * Clip-on design， easy to install * Tuning items: guitar， chromatic， bass， violin， and ukulele. * A4 range: 430Hz--450Hz * Tuning range: A0(27.5Hz)--a3(1760Hz) * Power: Power: 1 x CR2032 battery (not include) * Color: Black * Size: 4.5 x 3.5 x 4.1cm * Weight: 38g Packages: * 1 x Clip-on Guitar Tuner