ONIKUMA X91 Over-ear Wired Earphone with Microphone

1. Speaker Diameter: 50mm
2. Impedance: 20 ohms +/- 15%
3. Sensitivity: 113dB +/- 3dB
4. Frequency: 20Hz-20KHz
5. Microphone Size: 6x2.7mm
6. Microphone Sensitivity: -41dB +/- 1dB
7. Microphone Impedance: 2.2 kOhms
8. Directivity: Omnidirectional
9. LED Operating Voltage: DC 5V +/- 5%
10. Operating Current: 100mA
11. Headphone Interface: 3.5mm + USB jack
12. Cable Length: 2.2m