Description: This metronome tuner contains variety rhythm mode,you can choose one to corporate your music style. The rhythm allows you to adjust from 30 to 250 times/min,the screen can display the rhythm. Clamp type pickup and built-in microphone,you can use it to tune your music instrument,accurate and convenient. Chromatic screen display makes it easire to use,powered by 2 AAA battery. Compact size makes it can be easily stored,lightweight and very portable. Specification: Material: Plastic. Color: Show as picture. Size: 10*6.5*1.5cm. Battery: 2* AAA battery.(Not included) Note There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. The user manual only comes with English version. Package included: 1* Metronome tuner.(Battery not included) 1* User manual. 1* Cable.