KZ-EDX PRO Dynamic HiFi In-Ear Sports Music Headphones, With Microphone, Without Microphone

1. Wire: Oxygen-free copper double parallel.
2. Frequency response range: 10HZ-20KHZ
3. Plug Type: 3.5mm
4. Pin type: 0.75mm
5. Sensitivity: 112dB
6. Ergonomic design, comfortable and stable to wear.