1. 3D surround sound, breathable earmuffs
2. Lightweight design, no pain after long wearing
3. Soft skin-friendly earmuffs, breathable and comfortable
4. Without microphone, without volume adjustment
5. Ergonomic design, fits ears, no pressure to wear
6. Sounding principle: moving coil
7. Material: Cotton
8. Plug type: 3.5 / 6.5MM
9. Sensitivity: 102DB
10. Cable length: 1.2 meters
11. Working voltage: 5V
12. Working power: 0.5W
13. Working current: 100MA
14. Frequency response range: 20-20000HZ
15. Horn diameter: 30MM
16. Impedance: 32 ohms
17. Wearing method: rear hanging type
18. System support: WIN7 / WIN8 / WIN8.1 / WIN10 / XP
19. Size: 14x10.8x5.5cm
20. Weight: about 60G