Wearing method: head-mountedHeadphone output source: universalPlug type: straight typeWhether wireless headphones: wired headphonesWith or without a microphone: YesSpeaker diameter: 40mmImpedance: 32ΩHeadphone sensitivity: -105dB±3dBFrequency response range: 20Hz~20KHzMicrophone diameter: 6.0*2.7 mmMicrophone sensitivity: -38dB±3dBImpedance: 2.2ΩDirectionality: omnidirectionalCable length: about 2.1MHeadphone jack: USB+3.5mm single plugEarplugs / earmuffs material: memory sponge padded plus protein holsterThank you very much for your patronage, if you have any questions during the purchase process, please feel free to contact us, we will serve you wholeheartedly!