Features: - 400 kJ/m3 high power neodymium magnets produce high-resolution treble and midrange with powerful bass - Hybrid silicone rubber earbuds (S， M， L) supplied for secure fitting and long-term wearing comfort - Y-type cord with cord slider to prevent cord tangling - Cord adjuster supplied Specifications: Type: Closed， dynamic Driver Unit: 9mm Sensitivity: 100dB/mW Power Handling Capacity: 100mW Impedance: 16 ohm (1KHz) Frequency Response: 8-22，000Hz Magnet: Neodymium Cord: Y-shape Plug: Gold-plated L-shaped Stereo Mini Weight (Without Cord): Approx. 3g Supplied Accessories: Hybrid silicone rubber earbuds (Sx2， Mx2， Lx2)， Cord adjuster， Operating Instructions