KZ-ZEX PRO 1.2m Electrostatic Coil Iron Hybrid In-Ear Headphones, Style:Without Microphone(Black)

1. Wire: silver-plated double parallel wire.2. Frequency response range: 20-40000KHZ3. Plug Type: 3.5mm4. Pin type: 0.75mm5. Sensitivity: 104dB6. Ergonomic design, comfortable and stable to wear.7. Low voltage electrostatic unit, double magnetic moving coil unit, high frequency moving iron unit.