Function: 1. Enjoy your favorite music! - This mechanical metronome helps to develop and maintain rhythm, play accurately and increase musical awareness. 2. Applies to most musical instruments-by practicing piano, violin, guitar, bass, drums and other instruments, make the rhyme more accurate. 3. Amazing features - sound clicks and ringtones to maintain rhythm while reading sheet music; winding mechanism to generate rhythm without batteries; speed range: 40-208 beats per minute; rhythm selection: 0,2,3,4,6. 4. Even for children and beginners, it is easy to use-remove the brake, lower the cover, adjust the rhythm and rhythm, then use it; the average single total wind (2160 clicks) lasts at least 18 minutes, depending on the rhythm. 5. Red wood or shallow wood in color, wood-like design, exquisite and beautiful. Specification: Characteristics: Enjoy your favorite music! - This mechanical metronome helps to develop and maintain rhythm, play accurately and increase musical awareness. Applies to most musical instruments - When practicing piano, violin, guitar, bass, drums and other instruments, improve rhyme. Amazing features - sound clicks and ringtones to maintain rhythm while reading sheet music; winding mechanism to generate rhythm without batteries; speed range: 40-208 beats per minute; rhythm selection: 0,2,3,4,6. Even for children and beginners, it is easy to use - remove the brake, lower the cover, adjust the rhythm and rhythm, and then use it; the average single total wind (2160 clicks) lasts at least 18 minutes, depending on the rhythm. Red wood or shallow wood in color, wood-like design, exquisite and beautiful. Specification: Color: red wood/shallow wood (optional) Speed Range: 40208bmp Rhythm Selection: 0,2,3,4,6 Package List: 1x metronome 1 x User Manual