Type: HeadsetEarphone type: HeadphoneWay to wear: Head-mountedPlug diameter: 3.5mm+USBPlug type: straight plug typeWireless earphone or not: wired earphoneSound principle: moving coilFrequency response Range: 20-20000 (Hz)Impedance: 32 (Ω)Sensitivity: 106 (dB)Distortion rate: 0.05% (%)Length of wire: 2.2 (m)Loudspeaker diameter: 50 Φ (mm)Earplug/earcover material :ABSEarphone wire material: braided wireProcessing method: OEM processingPacking list: Headphones, instruction manualColor :3.5mm round hole plug front page,7.1 channel USB plug front page