B0921VZLVX LYNLYN Guitars,Guitar Pick Metronome Piano Mechanical Metronome for Guitar Piano Violin Musical Instrument Guitar Tuner,Guitar Tools,Liyannan (Color : Red)

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Unique fashion conical shape design, made of environmentally friendly materials, impact resistance, stability, wear resistance.
Internal clock structure with gears and winding drives a pendulum,no batteries required.
Movement made of 7 pure copper gear and bell,use a special groove driving parts design,reduce lots of friction, tolerance:<0.08%, precise rhythm and durable,doesn't need to add lubricants any longer . sound big, crisp. engraving scale adjustment rod , is different from the traditional stamping technology, solve swing uneven problem?ove rhythm precise ,give a good visual sense of tempo.