1. Material: metal + plastic
2. 16 balanced armature units, 3-channel sound guide, restore sound details
3. Humanized pluggable design, can be upgraded to Bluetooth headset
4. Zinc alloy shell, strong and wear-resistant
5. Oxygen-free copper wire, resistant to pulling, bending, and corrosion
6. Ergonomic design, comfortable to wear
7. Frequency response range: 20-40000Hz
8. Impedance: 15 ohms
9. Sensitivity: 105dB
10. Plug type: 3.5mm gold-plated
11. Pin type: 0.75mm gold-plated
12. Cable length: 1.2m+/-3cm
13. Weight: 33+/-3g