1MORE three-unit coil-iron headphones have a unit structure of "single moving coil + double moving iron". The dynamic unit is responsible for the mid-low frequency, and the two moving iron units are responsible for the high frequency. The extended range reaches 40KHz. The surface of the earphones uses multiple processes: fine sandblasting, high-gloss drilling, drawing, CD pattern engraving, etc., which is simple and elegant; the metal surface adopts anodizing process, and the golden metal speaker mesh is more beautiful and fashionable. This headset adds a high-strength silicone protective cover for the double-actuated arm unit. When the earphones are accidentally dropped or bumped, it can effectively absorb shock and avoid the adverse effects of impact on the armature unit, making the armature unit more solid and durable. Durable. 1MORE three-unit ring iron earphones are equipped with dual-system intelligent wire control patented technology, which can be adapted to control Apple and mainstream Android smartphones. It is compatible with the intuitive control of calls, volume increase and decrease, music selection and other functions of Xiaomi ring iron earphones. The differences include unit structure, appearance design, and headphone compatibility. In terms of sound quality and listening experience, the sound of 1MORE three-unit coil-iron headphones is better.