Clear shell design, re-cableable earphones with a dynamic driver. The design is sophisticated and cool, and the sound quality is not inferior to the price. It has top-class sound quality among re-cableable earphones in the same price range. - Model: Re-cableable Earphones - Accessories: Two types of ear tips - Cable: Transparent cable - Design: Clear shell design - Driver Configuration: Dynamic driver Plug Type: 3.5mm Frequency: 20-40000Hz Impedance: 23±3Ω Sensitivity: 108±3dB/mW@1KHz *Imported product, so the box may be crushed. *We have only opened the box to inspect for defects. There are no problems with the product. Please understand.