ITEM NAME:Mini Metronome Mechanical Metronome for Piano Guitar Bass Violin Perfect Light Description: The metronome adopts durable high-elastic nylon movement, which ensures a more stable working state, avoiding the shortcomings that ordinary metronomes are not accurate when once dropped.Its sound is soft, not harsh at all. Without bell ringing. It has a wind up mechanism and a swinging pendulum and is enclosed in a high-impact plastic case. metronome can help you train your concept on music speed, make your instrumental performance more complete and smooth, and make the rhythm more even. Material: Plastic and metal Size:4x5x11cm/1.57x1.97x4.33inch. Specification: Operating Instruction: 1 .TO START: Wind up the winding key in the direction of the arrow mark and push the pendulum leftward. 2 .TO SET TEMPO: Move the sliding weight up and down and set its upper end on the dial. 3 .AFTER USING: Slide the weight to the middle or upper part of the pendulum and put on the cover. Package Includes: 1 piece mini metronome SKU: DMO0015861161002354.Without bell ringing. TO START: Wind up the winding key in the direction of the arrow mark and push the pendulum leftward. TO SET TEMPO: Move the sliding weight up and down and set its upper end on the dial.