Sony DR-G240DPV Stereo-PC-Headset. Headset type: Binaural, Colour of product: Black. Device connectivity: Wired, Cable length: 2.5m. Headphone frequency: 40 - 20000 Hz, Impedance: 24Ω, Headphone sensitivity: 100 dB. Microphone frequency: 20 - 20000 Hz, Microphone sensitivity: -40 dB, Microphone input impedance: 1000Ω. Weight: 58g