KZ-EDC High-Value Subwoofer Wired HIFI In-Ear Headphones, With Microphone, Without Microphone

1. Wire: oxygen-free copper double parallel
2. Frequency response range: 20-40KHZ
3. Plug Type: 3.5mm
4. Pin type: 0.75mm
5. Sensitivity: 95dB
6. Ergonomic design, comfortable and stable to wear.