CVJ In Ear Wired Adjustment Switch Earphone 1. 2pin interface, plug-in structure, replaceable wire design 2. Aviation-grade aluminum-magnesium alloy cavity, aesthetic appearance design 3. Ergonomic design, firm to wear, comfortable and natural 4. A pair of headphones is equivalent to four kinds of headphones, toggle the switch to experience a variety of timbres 5. Four strands of silver-plated wire, the resolution, the amount of detail, and the level of separation are significantly improved 6. It adopts 10mm dual magnetic moving coil + Lous moving iron + custom moving iron unit, hybrid drive, bringing more precise and delicate full-frequency performance Parameter: 1. Wire material: silver plated 2. Impedance: 22 ohms 3. Headphone output audio source: HiFi 4. Horn diameter: 10mm 5. Distortion rate: 0.1% 6. Sensitivity: about 120dB 7. Frequency response: 10-40000Hz 8. Plug: 3.5mm L-shaped 9. Pin type: 0.75mm 2Pin 10. Cable length: 1.25m 11. Weight: 25g Packing list: - Headphone head x 1 - Headphone cable x 1 - Size silicone case x 6 - storage bag x 1 - Instructions x 1