Features:      *100% brand new and high quality.   *Small compact size;360 degree swiverl capability.   *Simple, one button operation. Simply click the button to cycle modes, and power.   *Brilliant LCD screen changes color when you're in the sweet spot.   *It will be a good Options for you to keep your instrument in tune.   *5 Modes to support major instruments - Bass, Violin, Guitar, Ukulele, and Guitar 27.5Hz to 4186Hz for maximum tuning precision.   *High precise detection and sensitive vibration clip. Designed for beginners and professionals.      Specification:      Brand: Aroma   Model: AT-01A   Material: ABS   Tuning Items: Chromatic(C)/ Guitar(G)/ Bass(B)/ Ukulele(U)/ Violin(V)   Pitch Range: 440Hz   Tuning Accuracy: ±0.5 cent   Power Supply: 1 x CR2032 battery (INCLUDED)   Package Size: 6 * 5* 4cm/ 2.4 * 2.0 * 1.6in   Package Weight: 35g / 1.2 oz   Fit for : Guitar, Bass, Violin, Ukulele, Oud, Cello, Violaet      Package Included:      1 x Tuners+1 x Battery (CR2032)