The Tracer headphones feature a sensitive microphone with noise reduction, which provides crystal clear voice communication.Wire length: 1,8Impedance (Ohm): 32Microphone: YesTransfer band (Hz – kHz): 20 – 22Volume control: YesPlug: 2 x minijackHeadset controller: BasicType of the headset: Supra-auralAudio device type:2.0