A4Tech EVO Vhead 50

Performance:Volume control: YesWearing style: Head-bandProduct colour: BlackHeadset type: BinauralProduct type: HeadsetCable length: 2 mPorts & interfaces:3.5 mm connector: YesBluetooth: NoUSB connectivity: NoConnectivity technology: WiredMicrophone:Noise-canceling: YesMicrophone type: BoomHeadphones:Headphone frequency: 20 - 20000 HzDriver unit: 4 cmImpedance: 32 Ω