Features:Enjoying your favorite music! - This mechanical metronome helps you develop and maintain your rhythm, play accurately and enhance your musical awareness. Applies to most musical instruments - When practicing piano, violin, guitar, bass, drums and other instruments, make the rhyme more accurate. Incredible features - sound clicks and ringtones to maintain rhythm while reading music tables; winding mechanism to generate rhythm without battery; speed range: 40-208 bpm; rhythm selection: 0,2,3,4,6. Even for children and beginners, it is easy to use - take out the brake, pull down the lid, adjust the beat and rhythm, and then use it; the average single total wind (2160 clicks) lasts for at least 18 minutes, depending on the rhythm. Red wood or shallow wood colored, wood-like design, exquisite and beautiful. Specification:Color:Red Wood/Shallow Wood(Optional)Speed Range:40~208bmpBeat Selection:0,2,3,4,6Package List:1 x Metronome1 x Users Manual.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.