1. Adjustable Time and Music Measurements: Wind up the spring, set your desired tempo and duration, and you're ready to go. This metronome features a metal accent bell for clear, loud sound—no batteries required. Powered by a winding mechanism, it produces precise beats with a speed range of 40 208 BPM and beat options of 0, 2, 3, 4, or 6. It is a rhythm companion for musicians of all levels. 2. Clear and Loud Sound with Metal Bell: The builtin metal bell enhances sound clarity, delivering a sharp, penetrating tone that cuts through any environment. Whether practicing solo at home or playing in an ensemble, the metronome's bell ensures your tempo remains audible, helping you maintain rhythm during every musical session. 3. Quality Mechanical Copper Movement: Crafted entirely from metal, the movement resists wear and aging—unlike plastic mechanisms that degrade over time and lose accuracy. This mechanical metronome guarantees longterm precision, helping you stay on beat, play with accuracy, and sharpen your musical sense. It is ideal for both beginners and professional musicians. 4. Elegant, Transparent Design with Material: Designed for both style and functionality, this metronome boasts a sleek, transparent ABS composite body. Its low center of gravity ensures stable placement on any flat surface, preventing tilting and optimizing performance. Always check that the metronome is level before use.