Teak Antique Vintage Style Mini Mechanical Metronome Piano Guitar Violin Musical Instruments Features: -Adopting high quality pure copper clock mechanism,offer you a precision rhythm -Adopting pyramid shape and rigorous design style,beautiful and practical -Help children develop speed concept -Help us to play music with more smooth and steady rhythm -Help us to focus on, improve the practice efficiency -Precision spring mechanism Specifications: Material: Teak + copper Color:wooden color Size: 33*115*205mm Precision: spring mechanism Tempo: 40~208bpm Tolerance<1% Beats:0,2,3,4,6 TIPS -Use a tool into the groove on the bottom , then open it -Open the bottom cover; you will see a piece of foam which used to protect the pendulum, please remove the foam before you use the metronome -Close the bottom cover, please follow the instructions shown in the manual Package included: 1 x Metronome 1 x Wiping cloth 1 x Operation instruction