1. It is ergonomically designed and comfortable to wear. 2. The USB single plug-in version with its own sound card is used in desktop + notebook + all-in-one computers and other devices. It has its own audio decoder chip, virtual 7.1 channel + subwoofer, suitable for DJ music + eating chicken, listening to sound and heavy games. 3. Sensitivity: -42+/-3dB 4. Directionality: omnidirectional 5. Impedance: 2.2K Ohm 6. Horn diameter: 50.00mm 7. Impedance: 20 Ohm +/-15% 8. Frequency response: 20-20000Hz 9. Input voltage: USB 5V 10. Output power: 20mW (1KHz 0dB) 11. Cable length: 2.13m
