1、Connetor: USB2.5mm/USB 3.5mm/ Dual DC/Crystal connector
2、Speaker：Ф30mm
3、Resistance：32Ω
4、Frequency: 20Hz - 20KHz
5、Sensitivity：115dB
6、Power：41MW
7、Max power：84MW
8. Noise level: ≤ -78dBA
9. Dynamic range: ≥ 78 dBA
10. Distortion rate THD: ≤ 0.1%
11. Stereo crosstalk: ≤ -52 dBA
12. Microphone specification: 6 * 5mm
13. Microphone sensitivity: -52dB
14. Microphone directionality: omnidirectional
15. Microphone impedance: ≤ 2.2K Ω
16. Microphone frequency response: 50Hz -15KHz
17. Headphone cable length: 2M