Material: ABSExquisite, compact, backlit, LCD screen, wide range of applicationsPower: 1x CR2032 button batterySize: 75*50*29mmColour: Black1. 5 Modes to support major instruments, Bass, Violin, Guitar, Ukulele, and twelve-tone temperament.3. 27.5Hz to 4186Hz for maximum tuning precision4. Built-in buzzer, vibration pickup, you can feel the subtle vibration. Can meet the usual practice and performance.5. Using smart chip, intelligent power saving. No automatic shutdown within 3 minutes6. Simple, one button operation. Simply click the button to cycle modes, and powerPackage Includes:1x Tuner1x Battery1x ManualOnly the above package content, other products are not included.Note: Light 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.