?PLAY YOUR FAVORITE PIECES WITH EASE!-This mechanical metronome helps you develop rhythm, maintain tempo, play accurately and increase your musical awareness.?APPLICABLE FOR MOST MUSIC INSTRUMENTS-Produce rhythms at a proper pace when practicing piano, violin, guitar, bass, drum and other musical instruments.?INCREDIBLE FEATURES-Audible click & bell ring to maintain the rhythm while reading music sheet; Wind up mechanism produce metrical beats, no battery required; Tempo range: 40-208 bpm; Beat selection:0,2,3,4,6.?EASY TO USE EVEN FOR CHILDREN & BEGINNERS-Take out the brake, pull off the cover, adjust the beat and tempo, and then you are ready to use; An average single full wind (2160 clicks) lasts at least 18 minutes depending on the tempo.? SATUSFACTORY SERVICE-Music book clip and piano cleaning cloth are presented.We provide life-long after-sales service support for every customer! Email us if you have any questions.